Maybe you’ve been questioning your relationship for a while, but every time you think you know what the problem is, you change your mind. You can spend months, sometimes years, moving between two completely different conclusions. One day you’re certain the problem is your partner. They don’t communicate. They don’t initiate. They drink too much. They work too much. They aren’t affectionate enough. They’ve broken your trust. They don’t seem interested in changing. You think, How much longer am I supposed to live like this? Then something shifts. Maybe you have a good weekend. Maybe your partner makes an effort. Maybe your therapist challenges you. Maybe you remember the ways you’ve contributed to the problems too. Suddenly the pendulum swings in the other direction. What if it’s me? What if I’m too critical? What if my expectations are unrealistic? What if I leave this relationship and discover I was the problem all along? Then you’re right back where you started.

This becomes especially complicated when there is a lot at stake. You may have children together. You may have been married for twenty years. You may share a home, finances, friendships and an entire history. Or maybe you aren’t married at all, but you’ve already invested years in the relationship and don’t want to start over. Sometimes there has been an affair, addiction, dishonesty or another significant rupture. Sometimes nothing dramatic has happened. You just keep having the sinking feeling that this relationship isn’t working, and you can’t figure out whether you’re supposed to work harder or finally listen to that feeling.

When people get stuck here, I sometimes find it helpful to stop asking, Whose fault is this? and imagine three circles instead. One circle belongs to you. One belongs to your partner. And one belongs to the relationship. The purpose of the circles isn’t to divide up blame or decide who has done more damage. They help separate responsibilities that tend to get tangled together when a relationship is struggling.

Your circle contains your behavior, your choices, your history and the way you respond when the relationship becomes difficult. Maybe you become critical when you’re scared. Maybe you shut down. Maybe you avoid hard conversations until resentment has been building for six months. Maybe you need constant reassurance. Maybe you threaten to leave when what you really want is for your partner to come closer. Maybe your childhood or previous relationships have made you especially sensitive to rejection, anger, distance, money, sex, abandonment or dishonesty. Those things are worth working on, not because they prove that the relationship problems are your fault, but because they belong to you. If you scream, criticize, withdraw, lie, monitor, punish, control or disappear when you are hurt, those behaviors remain yours even when your partner has genuinely hurt you.

This is where people sometimes get understandably resistant. Why should I be the one working on myself when my partner is the one who did something that hurt me? Because changing your behavior is not the same thing as excusing theirs. You can learn to regulate yourself and still decide that your partner drinks more than you want to live with. You can become less critical and still require honesty. You can learn to communicate more vulnerably and still decide that the person across from you isn’t capable of meeting you there. Working on yourself isn’t a promise that you’ll stay. It’s a way of becoming clearer about the decision you’re making.

The second circle belongs to your partner, and this is the circle people often spend an enormous amount of energy trying to climb into. You explain differently. You send articles. You beg. You argue. You remind. You monitor. You try couples therapy. You become nicer. You become angrier. You explain one more time why this matters so much to you, hoping that if you finally find the right combination of words, something will click. But your partner’s circle contains things you cannot do for them. You cannot make someone tell the truth. You cannot make someone become more emotionally available. You cannot make someone drink less, become more affectionate, address their mental health, participate more with the children, develop ambition, want sex, manage money differently or become interested in examining themselves. You can tell them what you need. You can tell them how their behavior affects you. You can make requests and set boundaries. Then you have to watch what they actually do.

Sometimes we become so invested in someone’s potential that we stop evaluating the person who is actually standing in front of us. We stay in relationship with the version of them we believe could exist if they went to therapy, stopped drinking, dealt with their childhood, became less avoidant, got through this stressful period or finally understood how much we’re hurting. Potential can keep a relationship alive for a very long time. A useful, if uncomfortable, question is whether you would choose this relationship if your partner stayed essentially as they are today. Not whether you could tolerate it, whether there are worse relationships, or whether they could eventually change. Would you choose the relationship that actually exists?

Then there is the third circle: us. This is the relationship you create together. Maybe one person becomes anxious and moves closer while the other becomes overwhelmed and pulls away. The more one pursues, the more the other retreats, and the more the other retreats, the more desperate the pursuer becomes. Eventually both people are convinced the other person is causing the problem. Or perhaps one person becomes critical and the other becomes defensive. One complains louder because they don’t feel heard, while the other listens less because everything sounds like criticism. Before long, neither person is behaving particularly well, even though each person’s behavior makes more sense when you understand what they are protecting. This is why relationships can’t always be understood by putting one person on trial. There may be things your partner genuinely needs to change. There may be things you genuinely need to change. And there may be a pattern between you that will continue until both of you recognize what you are contributing to it.

The three circles aren’t meant to tell you whether to stay or leave. They are meant to help you see what you’re actually deciding. When something happens, try asking yourself what belongs to you, what belongs to your partner, and what the two of you are creating together. If your partner lies and you respond by calling them names, the lie belongs in their circle and the name-calling belongs in yours. You don’t have to decide which is worse before taking responsibility for your part. If you’ve repeatedly asked for affection and your partner continues to show little interest in physical or emotional closeness, you can work on how you communicate the need, but you cannot put their willingness in your circle. If the two of you continually trigger the worst protective strategies in each other, that belongs in the relationship circle and deserves attention too.

Over time, something interesting can happen when you stay in your own circle. Instead of asking how to make your partner change, you begin asking what you are learning from the choices your partner continues to make. Instead of asking what is wrong with you that you can’t make the relationship work, you can ask whether you are showing up in a way that feels consistent with the person you want to be. And instead of trying to determine whose fault the relationship is, you can begin noticing what kind of relationship actually exists when each of you is responsible for your own part. The circles become less about assigning responsibility and more about collecting information.

Sometimes doing your own work changes the relationship dramatically. When one person stops criticizing, chasing, rescuing, controlling or withdrawing, the old dance can no longer happen exactly the same way, and a partner who seemed impossible may begin responding differently. But sometimes your growth reveals something else. You become calmer, clearer and less reactive, and your partner still lies. They still won’t communicate. They still won’t address the drinking. They still don’t want the kind of intimacy you want. Or perhaps they simply want a different kind of life. That information matters too.

There is another possibility that people often overlook. Sometimes you discover that your partner actually is showing up differently, but your own fear, resentment or old wounds have made it difficult to take those changes in. The target keeps moving. What you believed would finally make you feel secure happens, and within days your attention has shifted to the next thing that is missing. That deserves curiosity too, especially if you notice the same dissatisfaction following you across relationships. It doesn’t necessarily mean your needs are unreasonable. It may mean there is something inside you that no amount of reassurance from another person can permanently settle.

None of these discoveries automatically means you should stay, and none automatically means you should leave. The goal is not to become so emotionally healthy that you can tolerate any relationship. It is also not to find a partner who never activates an old wound. The goal is to become clear enough that you can tell the difference between something that is yours to work on, something your partner has to decide whether they are willing to work on, and something the two of you will have to change together.

There may never be a moment when you feel completely certain about a relationship decision, especially when there has been love, history and a life built together. But clarity often begins when you stop trying to determine who the problem is. You take care of your circle. You allow your partner to reveal what they will do with theirs. Then you look carefully at what continues to happen in the space between you. That may tell you far more about your relationship than deciding who is to blame ever could.