It's a Tuesday, and you're standing in the cereal aisle when a song comes on. It's one they liked. You haven't thought about them in days, and now your chest has folded in on itself. You miss them. This is the person who went quiet when you needed them, who made you feel like too much, or who left in a way you're still trying to understand.

Then comes the second wave, which is shame. What is wrong with me? They hurt me. I know they hurt me.

Nothing is wrong with you. Missing someone who hurt you is one of the most common experiences in human relationships, and one of the least talked about. People will sympathize with you for missing a person who died. Very few will sympathize with you for missing a person who was unkind to you.

You can miss the person and know the relationship was wrong

The first thing to untangle is that missing someone is not a verdict on the relationship. It's information about what you lost, and what you lost is rarely a single thing.

You may have lost the person's good moments, which probably did exist. You lost a daily routine, a witness to your life, someone who knew your jokes and your history. You lost an identity ("we") and a future you had already half-furnished in your head.

None of that cancels out the harm. Both things can be true at once, and the pain comes from holding both.

The reward system doesn't read your mental ledger

There is some neuroscience here, though it deserves modest claims. In a 2010 study in the Journal of Neurophysiology, Helen Fisher and colleagues scanned people who had recently been rejected in love while they looked at photos of the person who rejected them. They saw activity in regions tied to reward and motivation, including areas rich in dopamine signaling.

In plain terms, a person who has become central to your life gets wired into the brain's wanting machinery. That machinery doesn't weigh whether the person was good for you. It registers that something that mattered is gone and pushes you toward it. A hard-won rational conclusion ("this was bad for me") can sit in the same brain as a strong pull toward the person. The pull isn't evidence that you were wrong to leave.

Your memory edits the story, usually kindly

Memory adds a second push. Psychologists studying what they call rosy retrospection (the work of Terence Mitchell and Leigh Thompson is a good starting point) have found that people often remember past events more favorably than they felt in the moment. The sharpest edges of an experience tend to soften with distance.

This is why, three weeks after a painful ending, the highlight reel can play more easily than the footage of the bad nights. The warm Sunday morning comes to mind readily. The conversation where you cried in the bathroom so they wouldn't see is harder to retrieve, because your mind has less reason to keep it close.

You don't need to distrust every good memory. Just notice that the memory isn't a neutral witness, and that the version it plays when you're lonely is not the whole recording.

What you're often grieving is someone who never fully existed

Here is the idea that I think does the most work. Much of what we miss about a person who hurt us is not the person. It's the version of them we kept believing in.

The therapist and researcher Pauline Boss coined the term ambiguous loss for losses that lack clarity or closure: someone who is physically present but psychologically absent, or physically gone but psychologically still very much there. Relationships with people who were inconsistent, emotionally unavailable, or who disappeared by degrees often fit this shape. There was no clean ending, and there was no final truth about who they were.

So you keep missing someone you never got to fully have. You miss the potential, the one who showed up on the good days and might have shown up always, if only. You are grieving the future you were promised, in small hints, and never given.

That grief is real, and it is also hard to resolve, because the thing you lost can't be pointed to. You can't visit it or hold a service for it.

Why it feels so lonely: grief nobody validates

The grief researcher Kenneth Doka described disenfranchised grief, which is grief that isn't openly acknowledged or socially supported. Missing someone who treated you badly is a textbook case. Friends say "you're better off without them" and mean it kindly. But a message that says you shouldn't feel this adds a layer of isolation to the feeling itself.

So you stop mentioning it. You hide the missing, and hidden grief tends to run on a loop. It surfaces in the cereal aisle, at 2 a.m., and in the drafted-and-deleted text.

What helps, and what quietly makes it worse

Two common responses tend to backfire. The first is forcing yourself to feel only anger. Anger feels safer than longing, but if you suppress the missing, it usually returns with more force. The second is reaching out to relieve the ache. A message may soothe you for an hour, but it often resets the clock on healing, especially when the person is the same person.

What tends to help is quieter. You let the longing be legitimate and keep the memory complete. You do the grieving, and you don't act on every pull.

Your next moves

  • Write the two-column ledger today. On one side, list what you genuinely miss, in specific terms ("the way they remembered my sister's name," not "everything"). On the other, list what the relationship actually cost you, just as specifically. Keep it somewhere you can reread when memory starts editing.
  • Name what you're grieving. Finish this sentence three different ways: "I miss who I thought they were when…", "I miss who I was when…", and "I miss the future where…". Separating the person from the hope, the routine, and the self you were with them shows you which loss is doing the aching.
  • Tell one person the unedited version. Pick someone who won't rush to fix it, and say: "I know it was bad for me, and I still miss them. I don't need advice, just room to say it." Being heard is what undoes disenfranchised grief.
  • Set a 24-hour rule for contact. When the urge to text hits, write the message in your notes app and wait a full day. Often the urge crests and falls on its own, and what remains will tell you whether you want contact or just relief.
  • Replace one ritual, not just one person. Pick the hour you used to spend with them (the late-night call, the Sunday walk) and give it a new occupant, even a small one. Grief clings to the empty slot.

Where a tool like aside can help

The hardest part of this kind of grief is that the feelings contradict each other and won't stay still long enough to be understood. One day it's relief, the next it's longing, and by Friday it's anger. A private place to put each of those down, in your own words and in the moment, makes the pattern visible over time, including how often the missing arrives in waves and then recedes. That is the idea behind aside, a space to note what you're feeling without having to justify it. If you'd like to try it, you can find it at aside.lumenlabs.works. And if you never do, the ledger above will carry you a long way.