You have promised yourself that you will not reply this time. You have had enough of the arguments, the apologies and the sleepless nights spent wondering what you did wrong. You know how this usually ends. Yet when their name appears on your phone, you find yourself reading the message. Then reading it again.
For a moment, the anger you carried all day begins to soften. You remember the good times, the person they used to be, and the possibility that perhaps things will be different now. Before you know it, you are back in a conversation you had promised yourself you would never have again.
From the outside, such behaviour can be difficult to understand. Why would someone willingly return to a relationship that causes them so much pain? Why do we miss people whose absence should, in theory, bring us peace?
Love is one possible answer. Hope is another. But there may be something else happening beneath both.
When someone occupies so much of our emotional life, their absence can leave us with a strange emptiness. We become accustomed to thinking about them, worrying about them and arranging our days around them. Even the arguments become part of our routine.
And when the relationship begins to fall apart, we may find ourselves grieving more than the person. We may also be frightened of having nothing left to occupy that space.
The strange comfort of familiar pain
Imagine living in a house where one of the windows never closes properly. Every evening, cold air enters the room. You complain about it, adjust your furniture and find ways to make yourself comfortable. Eventually, you learn to live with it.
Now imagine moving somewhere else. The new house is warmer, quieter and more comfortable. But for the first few nights, something feels unusual. You have spent so long adjusting to the cold that its absence almost feels like something is missing.
Our emotional lives can develop similar habits.
A relationship may be full of uncertainty, yet the uncertainty itself becomes familiar. You know what usually starts an argument, how long the silence might last and what an apology sounds like. You have learned to recognise the smallest changes in someone's mood.
None of this necessarily makes you happy. But knowing what to expect can give you a feeling of control, even when you have very little.
There is also the matter of hope. A difficult relationship is rarely made up entirely of difficult moments. There might be kindness, laughter, affection and days when everything feels right. Those moments can keep us attached to a future we have imagined together.
We sometimes hold on to the possibility of what a relationship could become long after we have stopped enjoying what it actually is.
Of course, this cannot explain every painful relationship. Abuse can involve threats, isolation, financial dependence and deliberate control. As the National Domestic Violence Hotline explains, leaving an abusive partner can itself be dangerous. People need safety, resources and support, not judgments about why they have stayed.
But in other situations, where leaving is possible, we may still hesitate. We recognise that something is hurting us and find it surprisingly difficult to imagine life without it.
Perhaps familiarity has a greater hold over us than we like to admit.
What are we trying not to feel?
More than three centuries ago, the French philosopher Blaise Pascal was troubled by a peculiar human habit. People seemed willing to undertake enormous difficulties simply to avoid being left alone with themselves.
In his Pensées, Pascal explored what he called diversion. He observed how people filled their lives with pursuits, games, ambitions and distractions. Beneath all that activity, he believed, was our discomfort with confronting the fragile nature of our existence.
We might recognise a smaller version of this in ordinary life.
Think about how quickly we reach for our phones when we have nothing to do. How easily we fill an evening with videos, conversations or plans. There is nothing wrong with enjoying these things. But sometimes we are less interested in the activity itself than in avoiding the silence that comes without it.
A troubled relationship can occupy our attention in a similar way. There is always something to think about. A message to interpret, an argument to revisit, an apology to consider or a future to worry about.
The mind remains busy, even when the heart is exhausted.
And perhaps that busyness serves another purpose. As long as we are occupied with someone else's behaviour, we can postpone certain questions about our own lives. What makes me happy? What do I want? What would I do with myself if this person were no longer here?
These questions can be difficult, especially when we have spent years organising our emotions around another person.
The philosopher Søren Kierkegaard was deeply interested in the difficulty of becoming oneself. In his thinking about despair, he explored how people can become estranged from who they are and struggle to accept the task of living as themselves.
That offers another way of looking at painful attachments.
Someone who has spent years trying to save a relationship may begin to understand themselves through that responsibility. They are the one who forgives, the one who waits, the one who makes things work.
If the relationship ends, the responsibility disappears with it.
And then comes an unexpected question. If I am no longer the person trying to save us, who am I?
It is possible to miss a role we have played for years, even when that role has made us unhappy. We can become attached to the person we were while suffering, simply because we do not yet know who we might become without it.
The space we are afraid to leave empty
This pattern can extend beyond romantic relationships.
Someone might stay in a job they dislike because being busy gives their days a sense of purpose. Another person might maintain a friendship that leaves them exhausted because they fear having nobody to call. Someone else might repeatedly return to an old argument because accepting that it is over would mean accepting that there is nothing left to resolve.
In each case, what we hold on to gives shape to our lives. Removing it means facing the uncertainty of what comes next.
And uncertainty can be uncomfortable, even when it offers the possibility of something better.
We often imagine that peace should feel immediately pleasant. That once a difficult relationship ends, we should wake up feeling lighter, happier and grateful for our freedom.
Sometimes we do. At other times, the first thing we notice is the silence.
There are no messages to wait for, no arguments to prepare for, and no familiar emotional demands waiting to consume the evening. Hours that once passed in worry now belong entirely to us.
We might feel relieved in the morning and terribly lonely by night. We might miss someone without wanting them back. We might even question a decision that we know was necessary.
There is nothing particularly contradictory about these feelings. Missing something does not automatically mean it was good for us. And feeling lonely after leaving does not mean we should have stayed.
It may simply mean that an important part of our daily life has changed, and we are still learning how to live with that change.
Perhaps this is also why filling an empty space immediately can be tempting. We look for another relationship, another responsibility or another source of distraction. Anything that might restore the familiar feeling of having something to think about.
But what would happen if we allowed that space to remain unoccupied for a while?
We might discover interests that were neglected, friendships that quietly faded, or parts of ourselves that received little attention. We might also discover feelings we would rather avoid. Regret, loneliness, uncertainty, and the uncomfortable knowledge that we cannot always make sense of what has happened to us.
Learning to live with these feelings is unlikely to be as simple as deciding to enjoy solitude. We may need other people, practical support, time, and the patience to begin again without knowing exactly where we are going.
Still, there may be something valuable in recognising that emptiness does not always demand an immediate solution.
A quiet evening does not have to become a lonely one simply because nobody calls. A day without excitement has not necessarily been wasted. And a life without someone we once loved has not lost its ability to hold affection, purpose or meaning.
We can miss what was familiar while slowly making room for something different.
Perhaps, eventually, we may even begin to understand the difference between wanting someone's presence and fearing their absence.
One comes from what we share with another person. The other may come from what we have not yet learned to find within our own lives.
There will still be evenings when we reach for the phone, remembering someone we know we should not call. The silence might feel a little heavier than usual. We may wish things had turned out differently.
But perhaps, on one of those evenings, we will put the phone down and continue with our day.
Not because we have stopped caring, or because every feeling has disappeared. Simply because, for once, the empty space does not seem quite so frightening.
And we may begin to wonder how much of our lives we have spent trying to escape something that was never meant to harm us.