What Makes a Friendship Last

If you've been with me for the last two essays, you're carrying something heavy by now. You and I are both trapped. Yes, I am starting this essay as uncomfortable as you are, because I need to find one path to explain, at least, how a friendship has any incentive to last at all.

It's one of our weakest bonds because it lacks a fundamental structure to hold itself together like family or romantic partnerships. It is a relationship based solely on how happy we are there.

So let's start with the obvious: most friendships just don't last. Period.

They quietly age out, or move-city out, or new-relationship out, and nobody signs anything to make that a betrayal. It's just what happens to a bond with no scaffolding once the two people holding it stop actively holding it.

The wrong compliment

Which is exactly why I don't automatically trust the ones that do last. We throw around "we've been friends for years" like it's a credential.

It isn't. Time is just time. A friendship that survives a decade can be doing so for reasons that would make you sick if you looked at them directly, the same way a marriage can survive forty years on nothing but shared property and the fear of starting over.

So, the real question is: what are the ones that last actually made of? 

I've started sorting the answer into two piles because I believe every surviving friendship is driven by one of two forces.

The healthy side

The ceiling this pile is reaching isn't just about a friendship that merely survives, but about something truly special we call "chosen family".

So what's actually holding it up, day to day?

They are very good at something called bids: small, almost embarrassingly minor requests for connection that make a relationship feel alive. It can be a text, a meme, a look-what-I’m-doing-right-now embarrassing photo, a vent, or any tiny flare that says, "I’m here, do you see me? I’m taking the time to share something with you."

The consistency of these bid exchanges is a major factor that unites people.

Well, I guess I don't have to say it needs to go both ways, right? If one friend is always the one initiating and never really gets anything back, eventually they get tired of being the one who keeps it going and stop. I bet a lot of you have been through this: a friendship that slowly faded because you stopped reaching out. I know I have.

But noticing the bid is only the opening move.

Three more behaviors follow: positivity, supportiveness, openness.

Positivity is the simplest test: does being around this person feel good more often than not? Not perfect, not conflict-free, just net positive.

Supportiveness is what separates "let me know if you need anything" from actually showing up, the ride, the hour of your Saturday you didn't have to spare.

Openness is letting the other person see the real version of you, not the edited one you show at parties.

Here's the key detail, though: researchers found that these behaviors work between two people. That means it's not about what you do. It's about what the two of you do together, as a pattern.

One person cannot maintain a friendship by sheer force of effort.

It might seem obvious or even silly to mention, but I often see people stuck in friendships where they do almost all the work, especially when the other person has become very comfortable letting them.

Say that one twice if you're the type who needs it in writing. If you're the only one showing up with warmth, openness, and support, you haven't found the healthy friendship. You've found a job, and you're the only one clocking in.

But as I delved deeper into the research, one element surfaced as the key to a long-lasting, healthy friendship: support. It is the part that finally explains why some friendships survive real damage while others are euthanized after a single bad vacation trip.

A 2024 study on best-friend pairs found something that runs against the obvious instinct: the absence of support predicted a friendship's death far more reliably than the presence of conflict did.

It wasn't the fights that ended things but the silence afterward, the moment when the friend who could have shown up simply didn't. A friendship that argues yet still shows up in a crisis will often outlast one that never argues and never checks in.

Frictionless isn't the same as strong. Sometimes it's just untested, which is its own separate problem I'll get to in a minute.

But first, let's organize what constitutes a healthy friendship:

Look at that list and tell me if any of it is complicated, because to me it looks consistently boring. That's the problem, isn't it? The stuff that keeps friendships alive is so mundane that most people never bother to check if they're actually doing it.

But since you're here and all, maybe this is a good time to actually look at your own friendships through this lens. Not in a dramatic, soul-search-y way — just... honestly. In the shower later, on a walk, or when you are at work pretending to pay attention in a meeting, you know, those little self-care moments scattered through your day.

That's not a suggestion. That's a dare. Take it.

A lifelong friend is a witness.

A 10-, 20-, 30-, 40-, or 50-year friendship is beautiful because that person becomes a witness to your life. A witness of multiple versions of you: the ones you're proud of, the ones you'd rather forget, and all the messy in-between ones that made you who you are today.

This person got a front-row seat to the movie of your life... and they paid for that ticket. They didn't get it as a right. They chose it, again and again, decade after decade.

Think about what this means for a second.

How strong and beautiful is this human bond, really?

Marinate in that for a moment, because I'm about to take you into the toxic side of it. So breathe the pure air here for as long as you need.

The toxic-ish side

Yes, I’ve compiled a list of reasons why people remain in unhealthy friendships and what they are truly guarding.

Several excuses serve a common purpose: to preserve the friendship rather than ensure the wellbeing of those still involved.

Notice what's absent from that list: none of the reasons mention "because I still love spending time with them." The reasons leaning towards toxicity mainly protect aspects of people's core: their identity, years, reputation, or comfort, but they don't directly address friendship itself.

Basically, selfishness isn't the best way to build healthy relationships.

However, one reason outside this category is painful. I believe many people experience it quietly without ever acknowledging it.

You know the friendships you basically outgrow? Those.

There's no problem in getting wealthy while a friend stays broke. No problem finishing a degree while a friend never went to college. No problem having seen forty-five countries while a friend has never left the one they were born in. None of that breaks anything by itself.

The problem starts when the gap between A and B stops being merely a difference and starts triggering the people in the friendship.

I had a friend like this. We'd been through strikingly similar family damage, and for years, being around her was soothing precisely because she was one of the only people on the planet who could hear the worst of my stories and just get it, no flinching required. Then I went to therapy. Did the slow, unglamorous work. At some point, I stopped needing to be soothed.

She didn't. She's forty-two now, and she still doesn't know what it feels like to get a break from her own history.

Being around her stopped being soothing and started being exhausting, because every hangout dragged me back into rooms I'd already closed the door on. For a while I tried to treat it like a small anthropological experiment: stay curious, stay a little detached, watch what an unhealed life looks like up close. That lasted about as long as detachment ever lasts: it got repetitive, then it just started to hurt.

It was hard because I wanted to be with her, but each time I was near her, I felt physically worse. I felt helpless and unable to help her because she refused help and kept making excuses about why she couldn't leave. If you'd had one of these, you already knew exactly what I was describing. If you hadn't, no explanation could get you there. It was an if-you-know-you-know kind of pain.

A parenthesis: the untested friendship

There's a third category, and it doesn't belong in either pile, because it hasn't earned a pile yet.

An untested friendship isn't good or bad: it's unknown.

It has simply never been asked to do anything hard: no real conflict, no real proximity. You've never given each other rope, because you've never been close enough, or in each other's daily orbit long enough, for there to be any rope to give.

And the trap is that untested reads as solid. No fights means no problems, right? Twelve years of no fights must mean twelve years of nothing to fight about. That's the read. It's also, very often, wrong. Sometimes the absence of a test isn't evidence of strength. It's just the absence of a test.

I had one of these. Twelve years long, a friend I would have put money on, the kind of friendship I'd have used as my own example in an essay like this one. And looking back now, I think it's almost funny that it lasted twelve years for exactly one reason: we never got close enough to actually see each other.

We met when I was twenty-two. It held, easily, right up until I was thirty-four, when she moved to Italy. After a year without seeing her, I invited myself to her hometown, planning to spend quality time together because I missed her.

During those two months, I kept catching myself thinking: "Who is this person??"

Here's what did it: Her husband comes from a broken family, and he had an uncle who'd helped him move to Italy and sort out his citizenship recognition. That same uncle later took in his own son and daughter-in-law. Long story compressed: the situation between father and son turned violent, badly enough that the kid ended up beaten by his own father. My friend and her husband took the couple in: two people alone in a foreign country, with no money, unable to go home because home was where the danger was.

And what I watched, in the middle of that, was my friend complaining about how much toilet paper they were going through. Not a metaphor; she was keeping track of how quickly the roll was disappearing.

That was just the tip of it. Somewhere along the way, with no real self-regulation I could point to, she turned on them, started screaming at the exact two people who'd just fled a house where a father beat his own son. Not comforting them through it. Not even staying neutral. Becoming their accuser, in real time, over something that had nothing to do with either of them and everything to do with how little patience she had left for people who were inconveniencing her by having survived something.

I'd seen her be selfish before, twice, but this was something stranger... a kind of inhumanity I genuinely didn't know she was capable of.

I won't walk through the rest of what I saw those weeks, because you don't need the full inventory to get the shape of it.

Here's the thing that still unsettles me about it, a year later: nothing about the friendship had been a lie for those twelve years. The affection was real, the good time was real. It just hadn't been tested; and once it was, it crumbled majestically.

The crucial distinction: untested is only a problem when you don't acknowledge it.

You may be asking yourself, "Should I test all my friendships?" Of course not. The danger is when untested reads as solid. Keep your shallow friends, but know what they are.

I would argue the decades-long friendships cannot get there untested, but then I remember I actually have friends in my life who've been there for 24 years, who are somewhat untested. We go out, we laugh, we gossip, and everything is okay.

So I will rest my case here and let you walk the rest of this road in whatever direction you think is right.

Symmetry of expectation

I spent way too many hours on a question that sounds simple but isn't: can two people with genuinely low emotional intelligence maintain a fifty-year friendship?

My first answer was no. It felt obvious. Repair requires insight neither of them has. Witnessing requires a kind of processing they've never done. Case closed, essay over, go home.

Except that answer felt cheap the second I looked at it directly. Overly simplified, and honestly, a little hypocritical of me.

My theory behind a friendship that lasts may not be emotional intelligence. It may be symmetry of expectation instead.

Two low-EQ people, evenly matched, who both genuinely want easy and undemanding and nothing more... that's stable. For the exact same reason, two people who both want deep, repair-capable intimacy are stable.

Nobody is starving, growing quiet resentment. Both people are being honest about what they're asking for, and both are satisfied with what they're getting back. Run that arrangement for thirty or forty years, and it doesn't stay thin. On the contrary, the ground gets very solid and consistent over time.

It can turn into precisely the kind of witness I described in the last section, low emotional intelligence and all, since witnessing is not gated by insight but by time and presence, both of which are available to anyone.

Doesn't that make sense? No one is settling. Both people are happy with the output. That should be the whole theory.

My obsessive side was beginning to enter the realm of some people's rhetorical arguments: "But symmetry can change over the years, people's needs evolve, we expect more, and we go through difficult times." I agree with this perspective.

And I must confess that fatigue overtook me somewhere in the middle of this essay. I grew tired of writing, tired of the headache that came with every new route opening up each time I tried to land a point. Gender, culture, social media: all untouched, not because I didn't see them, but because I no longer had the energy to chase them down.

Which brings me to my actual, forced conclusion, and I've made peace with it even though I don't love it.

A fifty-year friendship belongs to the same brutal category as building real wealth or finding the love of your life. It's the category where you can put in gigantic, back-breaking effort and still, legitimately, not get there... no matter how much this essay has insisted on mechanisms, maintenance, and repair.

You need luck. You need both people's expectations to drift in compatible directions, again and again, for decades, without either of you ever really steering it on purpose.

Some people get that, but most don't.