Can You Ever Truly Leave the Past Behind?

There are few figures in modern life as psychologically powerful and culturally misunderstood as the ex.

Now for some contextual knowledge for you, I am writing this as a person with no ex, but as they say, ‘coaches don’t play’ so lets just say that it’s given me the privilege to be entirely objective. Ex-partners occupy a strange category of human relationship. They are neither strangers nor companions, neither entirely absent nor fully present (especially in the digital age). They are people who once had privileged access to our inner worlds and who, in many cases, retain a surprising amount of influence long after the relationship itself has ended. We are encouraged to move on from them, joke about them, stalk them online, learn from them, compare ourselves against them – or to their next partner – and occasionally return to them, but please do be wary of this. Yet despite the ubiquity of exes in contemporary life, our culture remains oddly conflicted about what they actually represent.

The ex has become a modern archetype.

From TikTok confessionals and Reddit forums dedicated to no-contact recovery, to celebrity reunion narratives and endless dating-app discourse, exes have become a recurring character in the social imagination. They are often framed as villains, cautionary tales, unfinished business, or proof that personal growth is possible. Rarely, however, do we stop to ask a deeper question: why do exes continue to matter so much?

Closure

Popular culture is obsessed with closure. Self-help literature promises it and, if you know me, then you know about my personal vendetta against the self-help section. Therapy language often implies it can be achieved through enough reflection and emotional processing. The prevailing assumption is that healthy people eventually arrive at a neat conclusion about a former relationship.

Reality appears considerably messier.

Recent psychological research suggests that emotional attachment to former partners fades far more slowly than many people assume. Studies examining attachment bonds after relationship dissolution have found that emotional ties often persist for years rather than months. For many individuals, attachment to an ex gradually diminishes over time, but does not disappear according to the clean timelines often presented in popular culture. Some research suggests that the average person may take several years to reach even the midpoint of emotional detachment from a former partner.

This finding challenges one of the central myths of modern dating culture: that moving on is a linear process.

Instead, psychological recovery often resembles grief. Progress is uneven. People revisit memories they thought they had processed. Emotional responses can reappear unexpectedly after long periods of apparent indifference. A photograph, a familiar song, or an old message thread can temporarily reactivate emotional systems that seemed dormant.

What many people interpret as failure to move on may simply be evidence of how human attachment works.

The Sociology of the Ex

The modern ex is not merely a psychological phenomenon; they are also a sociological one.

Historically, many former partners disappeared from everyday life. Geographic mobility was limited. Social circles were smaller and often more rigid. Once a relationship ended, opportunities for continued observation were relatively scarce.

Digital technology has fundamentally altered this dynamic.

Today, relationships rarely disappear completely. They linger, unfortunately for our healing process. Former partners can remain visible indefinitely, and in the unique circumstances when they don’t happen to be visible, i.e private accounts or no social media, then we express frustration for the lack of assumed access into their lives, it’s only fair that you get to stalk them online if you like, right? 

Sociologists have increasingly noted that contemporary relationships are shaped by what might be called “ambient intimacy” , the ability to observe someone’s life without directly participating in it.

An ex can now remain psychologically present without being physically present.

This creates an entirely new category of social relationship. We may know what an ex ate for breakfast, where they went on holiday, who they are dating, and what political causes they support, despite not speaking to them for years. The relationship has ended, but the information flow often continues.

In previous generations, forgetting someone was partially assisted by circumstance. Today, forgetting requires active effort, and this massively slows down the ‘healing’ process, if we ever truly ‘heal’, whatever that even means to self-help gurus.  

Why We Romanticise Former Partners

One of the most fascinating findings in relationship psychology is that people are not always longing for the person they lost. Often, they are longing for what the relationship represents.

Researchers studying attachment and post-breakup adjustment have found that emotional distress is frequently connected not only to the former partner but also to disrupted future narratives.

Relationships function as psychological projects. We build imagined futures around them, and romanticise the ‘what ifs’ and often these fantasies treat us better than they ever could have, but because we associate them with these feelings now, we long for them. 

When a relationship ends, individuals do not merely lose a partner. They lose an entire version of the future.

This helps explain why people sometimes remain emotionally attached to relationships that were objectively unhealthy. The longing may have less to do with the actual quality of the relationship and more to do with the collapse of an imagined life. Memory compounds the problem.

Human beings are remarkably poor historians of their own emotional experiences. We reconstruct the past selectively. Neuroscientists have long observed that memory is not a recording device but an active process of reconstruction. Over time, uncomfortable details can fade while emotionally significant moments become disproportionately vivid.

The result is often a polished version of the relationship that never truly existed. We remember the chemistry while forgetting the incompatibility, the intimacy while forgetting the anxiety. And, mostly, the possibility while forgetting the reality.

The Ex as Identity Marker

An overlooked sociological function of exes is their role in the construction of personal identity. We often think of relationships as experiences we have. In reality, relationships also help create who we become.

The sociologist Anthony Giddens argued that modern identity is increasingly reflexive. Individuals continually construct narratives about who they are and where their lives are headed. Relationships become part of that story.

Former partners, therefore, represent previous versions of ourselves. The university boyfriend may embody youthful idealism. The toxic ex may represent a period of poor boundaries. The great love who got away may function as a benchmark against which subsequent relationships are unconsciously measured.

When people revisit former relationships, they are often revisiting former selves.

The ex becomes a living archive.

This partly explains why encounters with former partners can feel so emotionally charged even when romantic feelings have long vanished. Seeing an ex is sometimes less about seeing them than it is about confronting who we used to be.

The Return of the Ex

Perhaps no relationship phenomenon generates more internal fascination than reconciliation.

Entire media ecosystems are devoted to analysing whether exes come back, whether second chances work, and whether people can successfully rekindle past relationships. The evidence, of course, suggests caution.

Research on cyclical relationships, sometimes called on-again, off-again relationships, indicates that repeated breakups and reunions are often associated with greater psychological distress, anxiety, and relationship instability.

This does not mean reconciliation is impossible. Rather, it suggests that reunion alone is not evidence of growth. People often mistake familiarity for compatibility.

But maybe it was always the right person, wrong time?

The ex represents known territory. In uncertain periods of life, known territory can feel extraordinarily attractive. Returning to a former partner may provide temporary relief from loneliness, uncertainty, or fear of being single.nBut familiarity is not necessarily a solution. Sometimes it is merely a refuge.

Why Exes Matter More Than We Admit

The cultural tendency to dismiss exes as embarrassing mistakes or irrelevant chapters may actually obscure something important. Every significant relationship alters the architecture of our emotional lives. It changes our assumptions about intimacy, trust, conflict, vulnerability, and belonging. Some relationships teach us what we want. Others teach us what we can no longer tolerate.

Many leave traces that remain long after the romance itself has ended. But this isn’t evidence of weakness, it’s evidence that human beings are relational creatures. The question is how we integrate them into our understanding of ourselves.

Healthy adjustment may not involve erasing former partners from memory. It may involve repositioning them. They cease being active protagonists in our lives and become part of the backstory. Their significance remains, whilst their centrality fades.

The ex factor, then, is not really about exes at all, but rather about the enduring human capacity to form attachments, construct meaning, and carry pieces of our relational history forward into the future.

Every ex leaves something behind. The challenge is deciding what deserves to stay.

Further Reading

Academic and Research Reading

• Susan Sprecher, Two Sides to the Breakup of Dating Relationships
• Stephanie Spielmann et al., Longing for Ex-Partners out of Fear of Being Single
• Stephanie Spielmann et al., Ex Appeal: Current Relationship Quality and Emotional Attachment to Ex-Partners
• René Dailey et al., Post-Dissolution Ambivalence, Breakup Adjustment, and Relationship Reconciliation
• Tara Marshall, Facebook Surveillance of Former Romantic Partners: Associations with Post-Breakup Recovery and Personal Growth
• Tara Marshall, Social Media Observation of Ex-Partners is Associated with Greater Breakup Distress, Negative Affect, and Jealousy

Cultural and Magazine Reading

• Psychology Today relationship archives
• The Cut’s dating and relationship essays
• New York Magazine’s Intelligencer relationship features
• Dazed magazine’s culture and intimacy reporting
• i-D’s contemporary relationship features
• The Atlantic’s essays on modern loneliness and attachment
• Time Magazine’s relationship psychology coverage

References

Marshall, T. C. (2012). Facebook Surveillance of Former Romantic Partners: Associations with Post-Breakup Recovery and Personal Growth. Cyberpsychology, Behavior, and Social Networking.

Marshall, T. C. (2026). Social Media Observation of Ex-Partners is Associated with Greater Breakup Distress, Negative Affect, and Jealousy. Computers in Human Behavior.

Spielmann, S. S., MacDonald, G., Joel, S., & Impett, E. A. (2016). Longing for Ex-Partners out of Fear of Being Single. Journal of Personality.

Spielmann, S. S., Joel, S., MacDonald, G., & Kogan, A. (2013). Ex Appeal: Current Relationship Quality and Emotional Attachment to Ex-Partners. Social Psychological and Personality Science.

Dailey, R. M., Zhong, L., Pett, R. C., & Varga, S. (2020). Post-Dissolution Ambivalence, Breakup Adjustment, and Relationship Reconciliation. Journal of Social and Personal Relationships.

Sprecher, S. (1994). Two Sides to the Breakup of Dating Relationships. Personal Relationships.

Psychology Today. Why Our Attachment to Ex-Partners Lingers for Years.

Time Magazine. Should You Stay Friends With an Ex? Here’s What Experts Say.

Time Magazine. Why Getting Back Together With Your Ex May Be Bad for Your Health.

Time Magazine. The Best Way to Get Over a Breakup, According to Science.