How to Stop Thinking About Your Ex: The Science of Letting Go

Constantly thinking about your ex? Here’s how to reclaim control of your thoughts and stop dwelling on the past.

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How to Stop Thinking About Your Ex – Unsplash – Liana S

After a breakup, you may find yourself trapped in an endless cycle of thoughts about your ex. You’re not alone in this experience. Ruminating about your ex is a common and completely normal reaction to the end of a relationship. Although these thoughts are harmless from time to time, dwelling on them can keep you stuck in the past. If you’re wondering how to stop thinking about your ex, understanding why it happens is the first step to reclaiming your mental space.

The Science Behind Why We Obsess Over an Ex

In the aftermath of a breakup, your mind often seems to work against you. Late at night, you might repeatedly replay memories of your ex. Or you may find yourself over-analyzing every decision that led to the breakup.

Obsessing over your ex is frustrating. However, there are sensible reasons for why people get stuck on someone after a romantic relationship ends—and the answer lies in psychology.

Rumination and Brooding

Your brain does its best to solve all the emotional “problems” that arise after a breakup. Despite this good intention, rumination (obsessively thinking about events of the past) can be the result. Unfortunately, this can be a damaging cycle. The more you ruminate, the more entrenched those thought patterns become.

Research, including a recent study from the European Journal of Trauma and Dissociation, shows that rumination can worsen emotional distress after a breakup. Dwelling on past events keeps you chained to the pain and prevents you from moving on. Although constantly thinking about your ex might seem like a problem-solving behavior, it’s actually deepening the emotional wound left behind by your breakup.

Attachment Theory

Your attachment style can also play a significant role in how you respond to a breakup. People with an anxious attachment style may feel an overwhelming need to reconnect with an ex. On the other hand, people with avoidant attachment styles might suppress their feelings, creating a different but equally damaging form of fixation.

Recognizing how your attachment style influences your healing process after a breakup can help you identify healthier coping mechanisms.

Practical Strategies: How to Stop Thinking About Your Ex

If you’re having trouble letting go of thoughts about your ex, don’t get discouraged. Acknowledging the psychological roots of these obsessive thoughts is the first step toward managing them. The next step is to implement strategies that help you break the cycle and regain control of your mind. Here are some strategies to try:

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1. Allow, Acknowledge, Redirect

Trying to suppress thoughts of your ex might seem like a logical thing to do, but it often backfires. Research suggests that resisting a thought can make it come back even stronger. Instead, trying an approach of “allow, acknowledge, redirect” lets you actively work through unwanted thoughts of your ex.

When a memory or thought about them arises, take a moment to acknowledge it. Say to yourself, “It’s okay this thought is here.” Then gently redirect your focus back to the present moment or the task at hand. Doing so gives you the power to manage your thoughts without being consumed by them.

2. Practice Mindfulness

Mindfulness is another great way to regain control over your headspace by teaching you to observe your thoughts without judgment. Practicing mindfulness helps you learn to recognize when your thoughts begin to spiral so you can bring your attention back to the present.

Mindful breathing is a great way to start (and it only takes one minute to try). Sit somewhere comfortable and close your eyes. For one minute, focus on your breath. Notice the sensation of the air entering and leaving your nostrils. Feel how your chest expands and falls with each inhale and exhale. If other thoughts come, simply acknowledge them and refocus on your breath.

3. Set Boundaries to Reduce Intrusive Thoughts

Sometimes the source of our unwanted thoughts is less mysterious than we’d like to think. External factors like social media or physical reminders of an ex can bring back painful memories when you least expect it. Setting boundaries can help you create a mental environment conducive to healing. Consider these steps:

  • Limit your social media exposure by unfollowing or muting your ex and their friends to hide posts that might trigger unwanted thoughts.
  • Declutter your physical space of physical reminders like gifts, photos, and mementos that pull you back into the past.
  • Establish firm contact rules that put you in control of whether or not you talk to your ex.
  • Create technology-free zones like your bedroom or dining area to help avoid mindless scrolling and give you a peaceful sanctuary when you want to unwind.

4. Reframe Your Story

The way you think about your breakup has an enormous influence on your recovery. Instead of seeing the relationship’s end as a failure, try reframing it as a chapter of life that taught you something valuable. When you intentionally change your mindset to focus more on the positives, your thoughts tend to follow the same pattern.

5. It’s Okay to Think About Your Ex (Sometimes)

Lastly, it’s important to acknowledge that thinking about your ex isn’t inherently bad. After all, they were a significant part of your life, and those memories don’t (and shouldn’t) disappear overnight. What matters is how you respond to these thoughts.

Healthy thinking involves reflecting on your ex in a way that helps you process the breakup and learn from it. Unhealthy thoughts happen when you get stuck in “what if” scenarios or constantly replay arguments.

Accepting that some thoughts about your ex are normal can help you approach them with less guilt and more compassion. Remember, healing isn’t about erasing the past, it’s about learning to live in the present.

Move Forward with a Peaceful Mindset

Thinking about your ex after a breakup is a natural part of the healing process, but it doesn’t have to consume you. Remember, your breakup is just one part of your story. Healing doesn’t mean banishing those thoughts and memories forever.

Understanding the psychological reasons for thinking about an ex gives you a solid foundation to build on. From there, you can learn to coexist with those memories while creating space for new ones.

The journey to reclaiming your mental and emotional freedom after a breakup is deeply personal, and it’s okay to take it one step at a time. Every time you choose to redirect your focus, set a boundary, or embrace the present, you’re choosing a happier future that reflects your strength and growth.