A forty-year study that can predict divorce by observing a single conversation. A therapist whose defining question to every couple was ‘Are you there for me?’ An eleven-word apology that most adults cannot bring themselves to say. A text sent on a Saturday afternoon about something you mentioned on a Thursday. The Internet taught an entire generation how to spot red flags. Nobody taught them what to look for when something is actually going right.
A note before you read: The green flags described in this article are drawn from Western relationship psychology research and clinical practice. Healthy relationships look different across cultures, neurodivergent experiences, and individual histories. No single checklist can define what a good relationship should look like for every person. Use this as a starting point for reflection, not a diagnostic tool.
The way people search for and interpret red flags in relationships is not only flawed, it also misses what actually makes relationships work. The Internet has made dating much safer. With the abundance of information available, people are more aware of the warning signs that indicate a potentially unhealthy relationship. Many forums offer lists of common red flags. These include delayed responses to messages, past issues with addiction or dishonesty, superficial judgments about physical appearance, and many others.
The issue with these lists is that they provide too many false positives. Awareness of red flags is necessary but not sufficient for evaluating a partner. When you are looking for a relationship, you are essentially searching for green flags. Green flags are the qualities that define emotional maturity, secure attachment, and respect. These are the essential elements of a successful, healthy relationship. Chemistry is not a green flag. It is a feeling, not a guarantee.
The success of a relationship depends on how well two people interact. To find a healthy relationship, you must first understand what one looks like. Dr. John Gottman, a psychologist who studied marital stability and divorce prediction through observational coding of couple interactions at the University of Washington’s “Love Lab,” conducted years of research on what separates couples who sustain strong, lasting relationships from those who do not. He identified several areas of study; however, he focused on the interactions of couples during disagreements. Instead of focusing on how often couples disagree, he looked at how respectful, emotionally responsive, and accountable couples were toward each other. These three qualities form the foundation of what this article identifies as green flag criteria, drawing on Gottman’s research.
The patterns he identified are not easily quantifiable, and they are not always immediately apparent. Those patterns are what this article calls green flags: behavioral indicators of emotional maturity, secure attachment, and genuine respect. These are the qualities that lead people to form lasting relationships and, more importantly, to sustain them. This list identifies fifteen green flags that are supported by psychology research and clinical observations. The sources that support each item are included and have been verified where possible. Where the items are based on clinical consensus, that distinction is noted.
1. They Express Their Feelings and Needs Without Blaming Others
A simple concept; yet a complex action. There is no riddle. No passive-aggressive behavior disguised as “I’m fine.” No hint dropped for decoding. If a person can say, “Your comment at dinner really bothered me; can we talk about it?” then they are expressing something that sounds basic yet is, in fact, incredibly uncommon. They trust you enough to be honest. They respect you enough to allow you to respond.
What the actual science shows
There is a connection between communication quality and relationship satisfaction. But there is more to this connection than most articles report. A longitudinal study by Lavner, Karney, and Bradbury (2016) that appeared in the Journal of Marriage and Family followed 431 newlywed couples across four time points. The cross-sectional findings clearly showed that satisfied couples used more positive and effective communication methods and had less negative communication than unsatisfied couples. However; and this is the part that most articles leave out; the longitudinal findings revealed a more complex picture. The study indicated that satisfaction was a more stable and significant predictor of future communication than the reverse, which raises “important doubts about theories and interventions that prioritize couple communication skills as the key predictor of relationship satisfaction.”
Translation: good communication is crucial, but it may be more of a gauge of relational health than a catalyst. Good communication reflects a healthy relationship and helps reinforce it.
A 2026 study inCommunication Studies (Hesse, Floyd & van Raalte) followed 141 heterosexual couples and demonstrated that overall affectionate communication (verbal, non-verbal, and indirect) was a much stronger indicator of relationship satisfaction, trust, and intimacy than the equity of affectionate communication between partners. According to co-author Colin Hesse, director of the School of Communication at Oregon State University: “Few communication behaviors are more important for the development, maintenance and quality of romantic bonds than the expression of affection.”
Practically speaking: observe how your partner responds to the little annoyances, not the big blowups. Anybody can be articulate during a calm, deep conversation. The true test is whether they can say “I would prefer you didn’t do that” about a small irritation without making it a big deal.
2. They Honor Your Boundaries Without Punishing You For Establishing Them
You tell them you need a night alone. They reply with “No problem; enjoy it” instead of “I guess you don’t want to spend time with me”.
That distinction matters. The first response represents someone whose identity doesn’t depend on having you available at all times. The second indicates someone who views your independence as a threat.
The bigger picture
Respect for your boundaries in the early stages of dating is one of the most reliable indicators of how a person will act in a long-term partnership. Research on coercive control; a pattern of behavior in which one partner uses control over the other through isolation, monitoring, and testing limits; indicates that when a person ignores boundaries in the beginning of a relationship, they tend to increase their use of coercion over time rather than decrease (Conroy, 2022; Ha et al., 2019). The person who throws a small tantrum because you canceled plans in month one is likely to become suffocating by month six.
This does not mean that every instance of disappointment indicates coercive control. All humans experience disappointment when plans change. The distinction is in the reaction: Does your partner express an emotion, or punish you for needing something?
3. They Acknowledge Their Mistakes Without Deflecting
“I screwed up. Sorry. Here’s what I’ll do differently next time.”
Just eleven words. It should be simple to say. Yet, many people will go to great lengths to avoid saying those eleven words. They might minimize (“you’re being paranoid”) or deflect (“well, you did the exact same thing last week”), or even so thoroughly rewrite history that you start to question your own recollection.
When someone admits an error without drawing you into a fight, they are demonstrating what psychologists refer to as accountability within a secure attachment framework. Mikulincer and Shaver’s (2005, 2007) extensive body of research on adult attachment has defined the field for nearly two decades. The researchers consistently demonstrated that adults with secure attachment styles are able to acknowledge errors, take their partner’s perspective, and engage in repair behavior after a conflict. Mikulincer and Shaver’s work has demonstrated that attachment security promotes empathy and caregiving, and ultimately supports honest accountability rather than defensive self-protection.
The most important test: What occurs after an apology? A legitimate apology leads to a change in behavior. A performance apology; an apology that appears sincere but produces no change; merely buys time before the same behavior recurs.
4. Their Words and Actions Line Up
This is the most straightforward concept listed. At least until you find yourself dismissing the misalignment.
They say they will call you on Friday. They call you on Friday. They state that the relationship is a priority, and their schedule reflects it. They say they care about your life and check in on the topics you discuss; genuinely, not for show.
Consistent alignment between words and actions is likely the clearest green flag a person can show. When that alignment is lacking, it creates a specific type of anxiety. Anxiety that people often mistakenly attribute to romantic excitement. Your nervous system goes into scan mode; constantly checking for potential dangers and analyzing each interaction to determine what is truly happening. That is not sexual tension. That is your body indicating that the environment is not safe.
What most people overlook
Trust is created by repetition, not grand gestures. Smaller-scale, consistent demonstrations of reliability and follow-through; answering calls when promised, recalling the things that matter to you, showing up when expected; build the foundation for a long-term relationship that no single dramatic gesture can match. According to the interpersonal process model of intimacy established by Reis and Shaver (1988), it is the perception of partner responsiveness; the consistent feeling that your partner knows you, understands you, and cares for you; that creates long-term intimacy.
5. They Are Emotionally Available Without Pretending To Be Relationally Present
Being relationally present does not involve sobbing on the first date or sharing your complete trauma history while ordering appetizers. Being relationally present means that you can sit with a feeling; either one that belongs to you or one that belongs to your partner; without dismissing it, laughing at it, or completely shutting down.
You bring up something that hurt you. They do not attempt to defuse the situation through laughter. They do not immediately jump into problem-solving. They say something such as, “That sounds very painful; do you want to share more about it?” and they mean it.
A 2024 review by Chopik, Weidmann, and Oh (Social and Personality Psychology Compass) examined the research on attachment and found that attachment security correlates with empathetic responsiveness to a partner’s emotional pain, that this responsiveness fosters intimacy, and that such intimacy is sustained over time; across months, years, and decades. This matters because chemistry fades. Physical attraction fluctuates. Relational presence is what allows two people to know each other over time. Without it, you are living with a stranger.
6. They Are Curious about your Internal World and not just your Surface Level
They ask you questions that go beyond the surface. They remember something you said about a difficult meeting at work on Thursday, and then they bring it up again on Friday. They know what makes you laugh and remember the details. They are interested in what you are passionate about, regardless of whether it overlaps with their own interests.
Gottman describes this concept as “love maps,” referring to the mental space devoted to knowing the psychological world of your partner. This includes knowing your partner’s worries, hopes, daily stresses, and dreams. Gottman has demonstrated that individuals who have developed “love maps” of their partner, and continue to update these maps as both partners grow and change throughout their relationship, tend to report higher levels of relationship satisfaction and resilience during times of stress.
Why this is less common than it appears
Being charming is easy. Being curious costs little effort for the first couple of weeks. The person who sends you a text on a Saturday afternoon to ask how your conversation with your boss went; not because it makes them look attentive, but because they actually followed what you said and care about the outcome; is demonstrating something sustainable. Sustained focus on another person’s experiences is one of the clearest and most visible expressions of love. Sustaining this type of focus costs nothing. No specific skills are required. Conversely, the absence of sustained focus on another person’s experiences is one of the quickest ways a relationship can lose its depth.
7. They Develop and Maintain Lasting Relationships Outside of your Relationship
Pay attention to how they talk about their friends. Have they had friends for five, ten, fifteen years? When they talk about family members, do they display a sense of nuance, rather than either blind loyalty or extreme hostility?
Lasting friendships and long-term relationships with others rest on the same underlying relational characteristics that are essential to a successful romantic relationship. These include: emotional dependability; the ability to work through conflict; and the ability to attend to the needs of another even when it is inconvenient.
There are many reasons why someone may have few close friends or may describe all family relationships as toxic. Trauma, relocation, social anxiety, and neurodiverse social patterns can all impact the size of a person’s social network. Having few close friends or describing all family relationships as toxic does not automatically mean a person is damaged, but understanding this aspect of their relational history matters.
A more telling indicator is watching how they interact with their friends while you are present. Many people put on their best behavior for a new romantic partner. How they respond to a friend who needs assistance at an inconvenient time; this is a more accurate representation of their relational character than how they act on a first date.
8. They Handle Conflict without Destroying You
Conflict is inevitable. Disagreements, frustrations, and the occasional heated exchange are all part of two separate people trying to build a life together. What matters is how the conflict is handled before, during, and after it occurs.
Gottman’s research
Dr. John Gottman conducted his research into the nature of relationships for nearly forty years. He identified contempt as the most damaging relational behavior, and the #1 predictor of divorce. The Gottman Institute defines contempt as communication that “assumes a position of moral superiority” over a partner; manifesting as sarcasm, eye-rolling, sneering, name-calling, or hostile humor. The Gottman Institute writes on its website: “Contempt, simply put, says, ‘I’m better than you. And you are lesser than me.'”
Conversely, Overall and McNulty (2017), in a review published in Current Opinion in Psychology, provided a more nuanced answer to the question of what works in conflict than simply “be nice during conflicts.” The authors found that direct, even confrontational, communication can be beneficial when significant problems need to be resolved and the parties involved are willing and able to change. Conversely, the same level of directness can be detrimental when one party feels insecure or unable to respond effectively. Cooperative, softening communication and expressions of affection during conflicts can sustain relationships when problems are minor or partners are defensive. However, that same softening approach can also prevent partners from addressing issues that need resolution.
The takeaway from this research is not that you cannot argue. It is that the manner in which you resolve conflicts is critical. Whether both partners feel valued and respected after resolving a disagreement is critical.
A partner who is capable of resolving conflicts fairly is much more valuable than a partner who never argues. Silence is not peace. Silence is usually a sign of avoidance.
9. They Support your Independence rather than Viewing it as Rejection
A genuinely secure partner encourages your social life, your professional ambitions, your hobbies, and your desire for solitude. They do not interpret your Thursday evening book club as a rejection of them, or view an impending business trip as a sign that you are losing interest.
Early indicators to be aware of
Possessive behavior often starts as a form of flattery. “I just want to spend all my time with you,” sounds romantic in week two. However, by week six, it can be overwhelming. Research on intimate partner violence consistently indicates that the earliest indicators of potential controlling behavior are early possessiveness and the erosion of the partner’s independent social life (Stark, 2007).
A partner who respects your independence is not pretending to be indifferent. They are demonstrating trust; trusting that your relationship does not need constant monitoring to survive, and trusting that you are a complete person outside of the relationship.
This is not the same as being emotionally detached. A secure partner says, “Have a wonderful time tonight. Tell me about it when you get home.” An emotionally detached partner says, “I don’t care what you do.” One reflects confidence. The other reflects indifference.
10. They Consistently Show Up after the Honeymoon Fades
In the first weeks of a relationship, everyone is attractive. Serotonin and dopamine levels are high. Messages come quickly. Ideas for dates are creative. However, at approximately the two to three month mark, the intense levels of serotonin and dopamine begin to dissipate, and the reality of the relationship becomes apparent.
Acevedo and Aron (2009) reviewed the literature on whether romantic love can persist in long-term relationships, and published their findings in Review of General Psychology. According to Acevedo and Aron (2009), while the obsessive and anxious nature of early-stage romantic love tends to dissipate, the deeper aspects of romantic love; intensity, engagement, and sexual interest; can persist for decades in some relationships. What differentiated those relationships was not continuous excitement, but continued engagement.
A “green flag” for this is not large-scale romantic gestures. It is the partner who continues to ask about your mother’s health at month eight. The partner who continues to brew coffee for you the way you prefer it without needing to be reminded. The partner who recognizes when you are going through a difficult time and expresses concern, even when the initial attraction and novelty of the relationship have diminished.
Stability; the willingness to continue to show up in small, unremarkable ways; is a much more reliable indicator of long-term relationship success than intensity.
11. They Discuss Past Relationships with Balance, not Venom
Ask someone about a previous relationship. Pay attention to what they say. More importantly, pay attention to how they say it. If the response is similar to “we had different goals and it did not work out,” then that person has demonstrated reflective capacity. If every past partner is described as “crazy” or a “total narcissist,” then this is a pattern to take note of.
The importance of nuance
Experiencing one truly difficult ex-partner is normal. People do encounter unhealthy partners. However, a pattern of describing every past partner as completely at fault, while taking no responsibility for any relational failures, indicates a lack of self-awareness that will likely affect your relationship. The way someone talks about their previous relationships says a great deal about how they may talk about yours if it ends.
12. They Listen to Understand, Not to Solve
You are venting about a horrible day; before you have finished your second sentence; they start telling you what to do. That is not listening. That is waiting for the moment to get in there and fix whatever is going wrong. Real listening involves sitting with someone’s frustration and not immediately trying to resolve the issue. It involves validating someone’s emotion before responding to the issue.
It involves giving the person the space to revisit the issue when they are ready to talk about it again instead of treating the issue as a box to check off. Malouff, Schutte, and Thorsteinsson (2014) conducted a meta-analysis published in the American Journal of Family Therapy and reported a significant positive correlation between trait emotional intelligence and the overall quality of the romantic relationship (r = .32). Emotional intelligence encompasses several capacities, including self-awareness, empathy, social skills, and emotion management.
However, at its core, emotional intelligence represents the capacity to be present with someone else’s experience rather than imposing your own agenda onto theirs. Being listened to is one of the most basic human needs in a relationship. It costs nothing. It requires no formal training. And when that is consistently absent, a relationship will deteriorate faster than almost anything else.
13. They Handle Disappointment Without Punishing You for It
You cancel plans because you are exhausted. You say you are concerned about how quickly things are moving. You tell them that you want to establish a boundary they did not see coming. Now pay attention to how they respond.
An emotionally stable person may feel let down. That disappointment is a completely normal response. However, they will not respond with anger. There will be no guilt trip. There will be no cold shoulder. There will be no “No big deal” followed by three days of silence.
Emotional Regulation
Gross & John (2003) found that the way people regulate their emotions in response to stressors has a substantial impact on their overall well-being, their emotional experiences, and their interpersonal relationships. Gross and John demonstrated that people who typically use cognitive reappraisal; the process of evaluating the meaning of an emotional experience; report higher levels of positive emotions, better interpersonal relationships, and overall well-being compared to individuals who typically suppress emotional expression.
The way a person reacts to a “no” early in a relationship reveals how they will react to the numerous small concessions that comprise a long-term partnership. Emotional regulation during disappointment is best evaluated early, before deep attachment clouds your judgment. By approximately six months into a relationship, the sunk-cost effect starts to distort perception. Thus, the early months represent the clearest window into a person’s emotional regulation style.
14. Your Basic Values Match. Even If Your Personalities Don’t
Chemistry is a spark. The values shared between partners create the container that maintains the flame.
There is absolutely nothing wrong with being intensely drawn to someone whose fundamental philosophy of life is diametrically opposed to your own. That chemistry will burn hot until the underlying difference in philosophy can no longer be concealed.
Do you both share the same vision of “family”? Do you both prioritize money the same way? Do you both consider the same level of ambition to be healthy? Which moral lines will you refuse to cross? These discussions are rarely exciting. They are, however, the conversations that determine whether two people will grow together, or if they will begin to drift apart.
Introverted vs. Extroverted. Spontaneous vs. Planned. Different social preferences. Most personality differences can be negotiated. Value differences are more challenging. Two people who have fundamentally opposing views on having children, or fundamentally different views on financial responsibility, have an inherent structural incompatibility that no amount of love can rectify. That is not always true. Some couples find innovative solutions to differing values. However, the likelihood of finding such solutions decreases substantially when the values in question are essential to each individual’s identity.
15. You Feel Secure Enough to Be Yourself
This last point is as much about what your partner does as it is about how you feel when you are with them. It is also likely the most important of the points above.
Would you express an unpopular opinion without preparing yourself for ridicule? Would you allow yourself to be in a bad mood without pretending to be happy? Would you admit to being scared, confused, or struggling without fear of retaliation?
Dr. Sue Johnson developed Emotionally Focused Therapy. She was a leading voice in couple therapy before her death in April 2024. Her book, Hold Me Tight, lays out the principles behind her approach. In that book, she wrote: “Being attached to someone provides our greatest sense of security and safety. It means depending on a partner to respond when you call, to know that you matter to him or her, that you are cherished, and that he will respond to your emotional needs.”
Johnson argued that the underlying question driving every conflict in a relationship is quite simple: “Are you there for me? Do I matter to you? Will you come when I need you, when I call?” When the answer is reliably yes, the barrier to vulnerability is lowered between two people. When the answer is uncertain, that barrier is raised.
If you consistently feel safer, more grounded, and more like yourself after spending time with a certain person, if your nervous system settles rather than activates in their presence, then that feeling is more valuable and rarer than virtually anything else listed here.
Quit Using the Red Flag Checklist. Start Here Instead.
Social media has created a new cultural norm for viewing relationships through the lens of threat detection. Threat detection is appropriate in a limited number of cases, particularly for people who have been abused or manipulated. You cannot construct a life with someone based exclusively on what you know to avoid.
Green flags do not go viral. They are not exciting. They are not sensational. However, they are the building blocks of healthy relationships. Those include emotional responsiveness, mutual respect, secure attachment, effective communication, and common values. These qualities do not arise overnight. They develop through consistent, unexciting, repetitive effort.
Start here. Write down the three green flags from this list that mean the most to you. Then, ask yourself a truthful and uncomfortable question: Am I consistently displaying those same three qualities?
The quickest route to a securely attached partner is to become one yourself. Begin there.
Frequently Asked Questions
What are green flags in dating?
Green flags are behavioral indicators that suggest someone is emotionally healthy, socially competent, and able to form a mutually respectful and secure relationship. Examples of green flags include: consistently expressing themselves verbally and nonverbally; respecting boundaries; being emotionally available; taking responsibility for their actions; and managing conflict in a manner that avoids contempt or retaliation.
How are green flags different from the absence of red flags?
The absence of red flags implies that a person has not yet shown obvious warning signs. Green flags are positive behavioral signs of emotional intelligence, secure attachment patterns, and a real commitment to the relationship. Someone can be free of red flags and yet lack green flags. That can mean the person is emotionally unavailable or lacks depth in their relationships.
Can someone pretend to exhibit green flags early in a relationship?
Yes. Some people are skilled at presenting behaviors that seem empathetically responsive, respectful of boundaries, and attentive during the initial phases of courtship. That is why consistency over time is one of the most important green flags listed above. Behavior that continues beyond the euphoria of the honeymoon phase is much more credible than the behaviors exhibited only during that phase.
Are green flags the same across all cultures and relationship contexts?
No. The green flags listed in this article are largely based on research from Western relationship psychology. Cultural norms surrounding communication, expressions of affection, independence, and conflict resolution are highly variable, and behaviors that signify health in one context may not convey the same message in another. Neurodivergent individuals may also express care, attention, and emotional responsiveness in ways that differ from neurotypical expectations.
What do I do if my partner exhibits some green flags, but not others?
Not every person will demonstrate all 15 of the qualities listed in this article. Relationships evolve. Humans are works-in-progress. The question is whether the fundamental patterns (accountability, respect, emotional safety, and consistent effort) are present and developing over time, regardless of the exact expression of those qualities.
What is the most important green flag based on research?
No single behavior guarantees a healthy relationship. Dr. John Gottman’s research identified contempt as the strongest predictor of divorce, and the presence of fondness and admiration as key indicators of long-term marital stability. The late Dr. Sue Johnson’s work on Emotionally Focused Therapy emphasized a subjective sense of emotional safety as the basis for all other healthy relationship behaviors.
Sources and References
Acevedo, B.P. & Aron, A. (2009). Does a long-term relationship kill romantic love? Review of General Psychology, 13(1), 59–65. https://doi.org/10.1037/a0014226
Chopik, W.J., Weidmann, R., & Oh, J. (2024). Attachment security and how to get it. Social and Personality Psychology Compass, 18, e12808. https://doi.org/10.1111/spc3.12808
Conroy, N.E. (2022). Additional manifestations of dating violence and coercive control. Journal of Interpersonal Violence, 37(19–20), NP17843–NP17870. https://doi.org/10.1177/08862605211028012
Gottman Institute. (n.d.). The four horsemen: Contempt. Retrieved from https://www.gottman.com/blog/the-four-horsemen-contempt/
Gottman Institute. (n.d.). The four horsemen: Criticism, contempt, defensiveness, and stonewalling. Retrieved from https://www.gottman.com/blog/the-four-horsemen-recognizing-criticism-contempt-defensiveness-and-stonewalling/
Gross, J.J. & John, O.P. (2003). Individual differences in two emotion regulation processes: Implications for affect, relationships, and well-being. Journal of Personality and Social Psychology, 85(2), 348–362. https://doi.org/10.1037/0022-3514.85.2.348
Ha, T., Otten, R., McGill, S., & Dishion, T.J. (2019). When conflict escalates into intimate partner violence. Journal of Adolescent Health, 64(5), 648–655. https://doi.org/10.1016/j.jadohealth.2018.10.299
Hesse, C., Floyd, K., & van Raalte, L. (2026). Affectionate communication in romantic relationships: Are relative levels or absolute levels more consequential? Communication Studies, advance online publication. https://doi.org/10.1080/10510974.2025.2610244
Johnson, S.M. (2008). Hold Me Tight: Seven Conversations for a Lifetime of Love. Little, Brown Spark.
Lavner, J.A., Karney, B.R., & Bradbury, T.N. (2016). Does couples’ communication predict marital satisfaction, or does marital satisfaction predict communication? Journal of Marriage and Family, 78(3), 680–694. https://doi.org/10.1111/jomf.12301
Malouff, J.M., Schutte, N.S., & Thorsteinsson, E.B. (2014). Trait emotional intelligence and romantic relationship satisfaction: A meta-analysis. Journal of Family Psychology, 28(2), 163–170. https://doi.org/10.1037/fam0000002 (Note: Also published in American Journal of Family Therapy, 2014, 42(1), 53–66.)
Mikulincer, M., Shaver, P.R., Gillath, O., & Nitzberg, R.A. (2005). Attachment, caregiving, and altruism: Boosting attachment security increases compassion and helping. Journal of Personality and Social Psychology, 89(5), 817–839. https://doi.org/10.1037/0022-3514.89.5.817
Overall, N.C. & McNulty, J.K. (2017). What type of communication during conflict is beneficial for intimate relationships? Current Opinion in Psychology, 13, 1–5. https://doi.org/10.1016/j.copsyc.2016.03.002
Reis, H.T. & Shaver, P. (1988). Intimacy as an interpersonal process. In S. Duck (Ed.), Handbook of Personal Relationships (pp. 367–389). Wiley.
Stark, E. (2007). Coercive Control: How Men Entrap Women in Personal Life. Oxford University Press.
