Why you sabotage good relationships (and how to stop)

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Learn three powerful metacognitive therapy steps to stop the worry cycle, reduce anxiety, and feel calmer in everyday life.


Have you ever found a partner who shows up consistently, creates safety, and values reciprocity? But even though the relationship feels steady, you find yourself starting fights over something small, or convincing yourself this person just isn't right for you? By the time things fall apart, you're left wondering what happened.
If you can relate to this, you’ve experienced relationship sabotage — a pattern that’s far more common than most people realize. It can show up in high-functioning, self-aware people, and for those who have had difficult pasts, often cropping up right at the moment when a relationship begins to deepen.
How does relationship sabotage show up?
Relationship sabotage can be subtle: It tends to look like picking arguments over minor things, emotional withdrawal, becoming distant or cold without being able to explain why. It can look like repeatedly testing a partner to see whether they'll stay or leave. Or, like picking at thoughts of uncertainty… dwelling on feelings that the relationship might be wrong, that your feelings aren't strong enough, that you're too different, that it was never going to work.
There's a painful irony at the centre of these behaviours: they tend to create the distance or isolation that you're most afraid of.
Sometimes the sabotage is even harder to recognize, like accusing a partner of the exact things you're doing yourself, from creating distance, to starting arguments, to not caring enough. Partners in these situations often feel helpless, because nothing they do makes the sabotaging person feel secure.
These patterns often show up during common transition moments in a relationship, such as conversations about the future, meeting each other's families, or taking the relationship to the next level. In other words, intimacy and closeness can cause more doubts, overthinking, and avoidance.

Download our best tips on reducing anxiety and worrying
Learn three powerful metacognitive therapy steps to stop the worry cycle, reduce anxiety, and feel calmer in everyday life.
Understanding where these patterns comes from
These patterns make sense when you understand where they come from. We often see this in people who grew up with unpredictable love and affection (inconsistent, unreliable, or hurtful caregivers), and go on to associate closeness with danger. Depending on someone else feels risky, because in their experience, people who got close eventually hurt them or disappeared. Being vigilant, keeping emotional distance, and expecting the worst become rational strategies in that context.
As adults, they may carry beliefs that they’re unlovable, not good enough, or unworthy of a stable and good relationship.
But from a Metacognitive Therapy (MCT) perspective, those early experiences themselves aren't what drives these patterns now. It's the ongoing mental engagement (known as Cognitive Attentional Syndrome, or CAS) that keeps old responses active in the present.
The CAS consists of three elements that cause ongoing distress:
- Repetitive negative thinking. You ruminate on whether the relationship is right, whether you're good enough, whether your feelings are real. You replay interactions, searching for evidence that something is wrong. And after you've played out a sabotaging pattern, deep self-criticism follows about being broken, ruining good things, or not deserving happiness.
- Threat monitoring. You constantly scan for signs of betrayal or abandonment. A partner who doesn't reply quickly enough. A look that seemed slightly off. A sentence that could mean something more. Your attention is locked onto threats, so you find them everywhere.
- Coping strategies that backfire. To protect yourself, you keep emotional distance, test your partner, and prepare for the worst. These strategies may have served you at one point — perhaps in a childhood where closeness was unpredictable — but now, they create the very distance and isolation you're afraid of.
The beliefs that drive our responses
Behind this pattern lies your metacognitive beliefs… your beliefs about your own thinking. Things like:
- 'Believing I'm unworthy keeps me safe from being hurt.'
- 'Expecting the worst protects me from devastation.'
- 'When I put up a defence, I can't be caught off guard.'
These beliefs can feel protective, but they keep you trapped in the same pattern. As long as you believe that ruminating, scanning, and emotional withdrawal are helping you, you'll keep doing them.
Another difficult dimension of relationship sabotage is that for some people, safety itself can feel uncomfortable. If your model of relationships was built around conflict and unpredictability, a calm and stable relationship can genuinely feel boring, or like evidence that something is missing. The absence of drama can be misread as the absence of connection.
What actually helps to overcome fear of intimacy
Many people in this pattern have already tried to work through it by exploring their history, unpacking past trauma, or trying to think and behave differently. That kind of self-understanding has value, but in MCT the focus is different.
Rather than analyzing the past extensively, the work in Metacognitive Therapy involves identifying the specific unhelpful mental processes (the worrying, the monitoring, the rumination) and learning to engage with them less.
A key strategy for this is detached mindfulness: noticing when an automatic thought appears ('She didn't reply to my message, maybe she's lost interest,') without latching onto it and analyzing it till you feel even more anxious. You allow the thought to exist without engaging. This work can also involve challenging your metacognitive beliefs directly: Is it actually true that rumination protects you? How has constant threat-monitoring actually helped you?
When you're no longer in threat-monitoring mode trying to protect yourself, the coping strategies — fights, withdrawing, testing your partner — lose their purpose. But it can feel deeply uncomfortable to drop those defences. For people who have relied on vigilance as protection, being open, present, and fully available to intimacy in a relationship can feel genuinely scary. But unlearning these coping strategies and challenging unhelpful metacognitions can be life-changing.
Can you overcome relationship sabotage?
The good news is that relationship sabotage is not a fixed personality trait. It's a pattern that was learned for a reason — and one that can be unlearned.
The goal isn't to never have an insecure thought again… that's a natural part of being vulnerable with another person. The goal is to allow those thoughts to come and go without triggering the old spiral of analysis, scanning, and sabotage.
If you’re looking for more support in challenging your relationship beliefs and patterns, you can book a session with our MCT-certified therapists here.

