Why Do I Miss Someone Who Hurt Me? The Psychology of Longing

Educational content only — not a diagnosis, therapy, or personalised advice. Written by an independent researcher, not a licensed clinician. Learn more.

It is one of the most frustrating contradictions of human emotion: knowing someone was bad for you, yet still aching for their presence. You might remember their harsh words, their broken promises, or the cold shoulder they gave you. Yet, in quiet moments, you still find yourself staring at your phone, hoping their name will light up the screen. If you are asking yourself, “Why do I miss someone who hurt me?” you might feel a deep sense of shame or self-judgment.

This emotional pull can make you feel as if your healing is a lie. But missing an ex-partner who treated you poorly is not a sign of weakness, nor does it mean you belong back in an unhealthy situation. It is simply a reflection of how human attachment, memory, and grief operate under stress. Your emotions often require more time to adjust to reality than your intellect does.

Grief vs. Trauma Bonding: Understanding the Difference

Before exploring the reasons behind this feeling, it is important to distinguish standard relationship grief from a more complex pattern known as trauma bonding. People often use these terms interchangeably, but they are behaviorally distinct.

Normal relationship grief is the natural process of letting go. It involves sadness over the loss of companionship, disappointment over a failed future, and the discomfort of changing your daily habits. It occurs even if the relationship was highly mismatched or emotionally painful. This is a healthy, albeit painful, adjustment period.

In contrast, a trauma bond is a specific psychological attachment formed by a repeated cycle of abuse, devaluation, and positive reinforcement. If your partner put you through intense emotional highs and devastating lows—where they were the source of your pain but also your only source of comfort—you may have developed a trauma bond. This bond makes leaving feel physically and emotionally overwhelming, similar to breaking a physical dependency.

Knowing which pattern you are experiencing helps you choose the right path forward. Normal grief requires time and self-compassion, while healing from a trauma bond often requires strict boundaries and professional support.

Sarah’s Story: The Conflict of Logic and Emotion

To see how this plays out in real life, consider Sarah. She ended her relationship with David four months ago because of his chronic criticism and emotional unavailability. David would ignore her for days whenever they had a disagreement, leaving Sarah in a state of high anxiety. When he finally reached out, he would offer brief affection before returning to his distant behavior.

Despite knowing the breakup was necessary, Sarah struggled on rainy Sunday afternoons. She missed the specific way David made coffee and the rare, warm conversations they shared on the couch. She found herself romanticizing those quiet mornings, forgetting the hours of cold silence that usually followed. The contrast between her logical decision to leave and her emotional urge to text him made her feel as though she was losing her mind.

1. The Power of Intermittent Reinforcement

One primary reason Sarah—and many others—miss partners who caused them pain lies in a behavioral concept called intermittent reinforcement. This occurs when rewards are given unpredictably rather than consistently.

If a partner is cold and distant ninety percent of the time, but occasionally shows immense warmth, that occasional warmth becomes incredibly powerful. You begin to monitor their moods, waiting for the next positive moment. When that moment finally arrives, the relief is intense. This unpredictable pattern keeps you focused on securing the next “high” of validation, making the relationship highly addictive and incredibly difficult to let go of once it ends.

2. The Fading Affect Bias (Your Brain’s Highlight Reel)

The human brain possesses a natural defense mechanism known as the Fading Affect Bias. Over time, the negative emotions associated with bad memories tend to fade faster than the positive emotions associated with good memories. This is an evolutionary trait designed to help us move past trauma and avoid despair.

However, when you are recovering from a breakup, this bias can distort your perception. You might remember the laughter shared on a weekend trip while completely forgetting the intense argument that ruined the drive home. When loneliness sets in, your memory presents a curated highlight reel of the relationship. Recognizing this bias helps you realize that your warm memories are only a partial representation of the truth.

3. The Sudden Loss of Identity and Routines

When you exit a relationship, you do not just lose a person; you lose the daily habits, inside jokes, social circles, and future plans you built with them. Your brain thrives on predictability, and the sudden absence of these daily structures can feel disorienting.

You might miss the routine of sending a text during your lunch break or having a designated person to complain to about your day. The discomfort of this empty space can easily be mistaken for a desire to have your partner back. In reality, you are often grieving the loss of your daily structure rather than the actual person who filled it.

4. The Unresolved Closure Loop

If a relationship ended abruptly, or if your partner refused to take accountability for their behavior, you may find yourself trapped in a loop of unresolved questions. You might spend hours wondering why they acted the way they did, or what you could have done differently to change the outcome.

This mental loop keeps your attention locked onto your ex. You may feel a strong urge to reach out, believing that one final conversation will provide the clarity or apology you need to move on. Unfortunately, seeking closure from the person who hurt you often leads to further disappointment. True closure is an internal decision to accept their actions as their final statement.

5. Confusing the Need with the Source

Every human has fundamental emotional needs: to feel seen, valued, safe, and connected. Even in an unhealthy relationship, your partner likely met some of these needs at certain times, even if they did so inconsistently.

When you feel lonely, you might think, “I miss my ex.” If you look closer, however, you may realize what you actually miss is the feeling of being held, or having someone to talk to after work. Your ex was simply the specific source through which you met those needs. Once you separate your valid human needs from the specific person who treated you poorly, you can begin to find healthier ways to fulfill them.

How to Manage the Longing Without Reaching Out

Allowing yourself to feel grief is an essential step in recovery. However, feeling an emotion does not mean you must act on it. You can feel a wave of longing for your ex while maintaining your boundaries and keeping your distance.

To handle these moments, try using the “both/and” framework. For example, tell yourself: “I can miss the good moments we had, and I can also acknowledge that this relationship was not safe or healthy for me.” This allows you to honor your past feelings without invalidating your current reality.

Additionally, avoid behaviors that reopen the wound, such as viewing their social media profiles or reading old text messages. These habits feed the longing and delay your adjustment to a new life. Instead, direct your energy toward building new routines, connecting with trusted friends, and focusing on your physical and mental well-being.

Safety and Support Resources

If the relationship you left involved controlling behavior, threats, physical escalation, or stalking, prioritizing your safety is paramount. Leaving can be the most unpredictable and dangerous phase of ending an unhealthy connection. It is crucial to build a practical safety plan before attempting contact or breaking contact entirely.

If you need assistance creating a safety plan, or if you feel unsafe, support is available:

• The National Domestic Violence Hotline: Call 1-800-799-7233 or text “START” to 88788 (Available 24/7 in the U.S.).
• The Crisis Text Line: Text “HOME” to 741741 to connect with a crisis counselor.
• If you reside outside the United States, please reach out to your local emergency services or a national domestic abuse support organization in your area.

Sources & Further Reading

• For an in-depth explanation of trauma bonds and intermittent reinforcement, read the guide provided by the Cleveland Clinic on Trauma Bonding.
• To understand how memory biases affect our perception of past events, view the research published on the National Library of Medicine regarding breakups and self-concept change.
• If you are seeking support for leaving an abusive relationship, please refer to the safety planning resources at the National Domestic Violence Hotline.