Healthy vs Unhealthy Relationships: Green Flags, Red Flags and the Difference

About this tool

Every relationship has ups and downs, and even good ones have rough patches. The difference between healthy and unhealthy is not the absence of conflict, but the patterns that run underneath it: whether there is respect, trust, honesty, and room for both people to be themselves. This guide lays out those patterns side by side so you can step back and see your relationship more clearly.

Healthy relationships are built on mutual respect, trust, good communication, and support for each other's independence. Partners can disagree, repair, and keep their own friendships, interests, and sense of self. Unhealthy relationships drift the other way: toward control, contempt, dishonesty, walking on eggshells, and one person's needs consistently overriding the other's. These are sometimes called red flags, while the positive signs are called green flags.

It helps to think in terms of overall patterns rather than isolated incidents. A single bad argument does not make a relationship unhealthy, and a single sweet gesture does not make it healthy. Look at how the two of you treat each other most of the time, especially during stress and disagreement, which is where character shows.

If you recognize a lot of the unhealthy signs, that is worth taking seriously. Some unhealthy patterns can improve with effort, honesty, and sometimes couples therapy. But when control, fear, or any form of abuse is present, the priority shifts from improving the relationship to staying safe. The resources noted below can help.

Research by psychologist John Gottman identified four communication patterns that reliably predict relationship breakdown: criticism, contempt, defensiveness, and stonewalling, sometimes called the four horsemen. In long term studies following married couples over several years, these patterns, especially contempt, were among the strongest predictors of divorce. Naming these patterns is often the first step in noticing them in your own relationship, and the Four Horsemen Worksheet (Gottman) on this site walks through each one with concrete examples.

The way you learned to relate to caregivers early in life often shapes how you handle closeness, conflict, and reassurance as an adult, a pattern researchers call attachment style. Someone with a more anxious attachment style may read distance as rejection, while someone with a more avoidant style may pull back when a partner wants more closeness. Neither pattern makes a relationship unhealthy on its own, but understanding your Attachment Styles can help you tell the difference between a real red flag and a pattern that reflects your own history.

Unhealthy patterns that cross into abuse are more common than many people realize. The Centers for Disease Control and Prevention estimates that more than one in three women and one in four men in the United States experience physical violence, sexual violence, or stalking by an intimate partner at some point in their lives. That scale is part of why noticing a pattern early, before it escalates, matters and why safety planning is worth taking seriously.

If you have worked through this guide and most of what you circled falls on the unhealthy side, that is information worth acting on, not a reason for shame. Many people find it helpful to talk it through with a therapist who specializes in relationships, who can help sort out what is fixable, what is a dealbreaker, and what to do next. If fear or safety is part of the picture, a domestic violence advocate can help you think through your options confidentially before you decide anything.

Reviewed by Michael Callans, MSW
Reviewed the green and red flag lists for accuracy and for safe, non-shaming framing.

References

1. Gottman JM, Silver N. The Seven Principles for Making Marriage Work. Harmony; 2015.
2. National Domestic Violence Hotline. Healthy vs. unhealthy relationships. thehotline.org.
3. Centers for Disease Control and Prevention. Intimate partner violence: risk and protective factors. CDC; 2024.
4. Gottman JM, Levenson RW. Marital processes predictive of later dissolution: behavior, physiology, and health. Journal of Personality and Social Psychology. 1992;63(2):221-233.
5. Hazan C, Shaver P. Romantic love conceptualized as an attachment process. Journal of Personality and Social Psychology. 1987;52(3):511-524.
6. Centers for Disease Control and Prevention. Fast Facts: Preventing Intimate Partner Violence. CDC; 2024.

Healthy vs Unhealthy Relationships FAQ