26 September 2026 · 9 min read
When Your Metamours Don't Get Along
By Meg Wilson, Director, Unison Mental Health
It's Sunday night and you're doing the week's calendar. You already know Thursday is going to be a problem. The last time you stayed at one partner's place on a Thursday, the other one sent a text at 11pm that just said "cool." Nothing else. You spent the next morning trying to work out whether "cool" meant hurt, angry or done, while also trying to be present with the person you were actually with.
If you're the hinge between two partners who don't like each other, that's a pretty ordinary Sunday.
For the purposes of this article, a hinge is the person in the middle of a V. You're in a relationship with two people who aren't in a relationship with each other, which makes them each other's metamours: your partner's partner. Some metamours become close friends. Some are friendly at birthday parties and leave it there. And some can't stand each other, or are so jealous of each other that every plan you make gets read as evidence of who you love more.
This one is for the hinge in that last group. I'll get to the practical things further down, but first I want to spend some time on what this is actually like, because most of the hinges I see are carrying far more than they give themselves credit for.
Why the middle is so heavy
A real hinge is the small piece of metal that lets a door open at all. The door and the frame never touch each other directly; everything moves through the pin. Most of the time that's a lovely place to be. You're the point where two relationships you care about meet, and when things are moving smoothly you barely notice the weight. It's when the two sides start pulling in different directions that the strain shows up, and it tends to show up in the hinge first.
A few things tend to make it heavier than people expect.
You love both of them, and you hear the worst of each. When one partner tells you what they think of the other, they're describing someone you care about. You hear the complaint, and you also know the version of that person who brings you soup when you're sick. It's a strange kind of grief to watch someone you love be misread by someone else you love, and to suspect that correcting it will only make things worse.
You get cast as the judge. Most metamour conflict gets brought to you for a ruling. Was it rude that she didn't say hello at the party? Is it fair that he gets your birthday weekend? Whatever you say, one partner hears you taking the other's side. So you stop saying much at all, and then both of them feel like you're not showing up for them.
Your own happiness starts to feel like a liability. A good date with one partner becomes something to play down with the other. You catch yourself editing what you post, what you mention, how excited you sound on the phone. Hinges in high-conflict Vs often describe a low hum of guilt about the very thing polyamory was supposed to give them.
There's no script for this. Mononormativity, the cultural assumption that one partner at a time is the default, hands us a very clear blueprint for how to feel about your partner's other partner. They're the rival. The threat. "The other woman." It's in nearly every film we grew up on. So when two metamours clash, they aren't only reacting to each other. They're reacting through a script that says this person is dangerous, and no wonder it's hard to switch off.
If you grew up in a home where keeping the peace was your job (and a lot of hinges did), all of this lands on a nervous system that already knows how to scan a room for trouble. That's often why the Sunday calendar makes your stomach drop before you've even opened it. Your body learned a long time ago that other people's conflict was yours to manage. I've written more about that pattern in being a hinge when you're a people-pleaser.
What's yours to carry, and what isn't
Before the practical stuff, it helps to sort out responsibility, because most exhausted hinges have picked up jobs that were never theirs.
Broadly speaking, you're responsible for your relationship with each partner, for the agreements you've made and whether you keep them, and for how you talk about each partner to the other. That last one matters more than most people think, and I'll come back to it.
You're not responsible for making them like each other. You can't be. Liking someone isn't something you can arrange on another person's behalf, and trying to engineer it usually backfires. There's a line I come back to a lot: if you control the thing you love, the thing you control dies. The metamour relationship is its own relationship, even when it's a distant one, and it gets to be whatever those two people make of it. That can include not much.
Practical ways to support your metamours (and yourself)
None of these will fix a V overnight. They're the things that, in my experience, lower the temperature enough that people can start talking.
1. Stop carrying messages
"Can you tell her I need the car back by six?" seems harmless. So does mentioning that he was upset about the party. But every message you relay goes through your tone, your editing and your wish for everyone to be okay, and it arrives changed. Then you get blamed for the change.
Where it's practical, let logistics go directly between them. A shared calendar they can both see does a surprising amount of work here, because it takes you out of the role of announcing plans one of them won't like. Where direct contact isn't possible yet, keep your own messages short and factual, and say plainly that you won't carry feelings back and forth: "I think that's one to say to him, not to me. I'm happy to help you work out how."
2. Be careful where you vent
This is the one people least want to hear. After a rough week with one partner, the other partner can be the easiest person to talk to about it. They're right there, they care about you, and they're a very sympathetic audience.
The trouble is that every venting session goes into their file on your other partner. They hear about the fight on Monday and never about the repair on Tuesday. Six months later they have a detailed, evidenced case for why this person is bad for you, and you built it for them. Take the rough weeks to a friend, a therapist or a notebook. Not to the metamour.
3. Listen to the jealousy without taking orders from it
You don't choose your emotions. Your body does. Jealousy is a real feeling with real information in it, and neither of your partners is doing polyamory wrong because they feel it. But what the feeling wants isn't automatically what should happen. Jealousy might say "cancel Thursday" or "tell her she can't come to the party." That's the feeling talking. You don't have to follow it, and neither do they.
What I'd suggest instead is getting curious with each partner, separately, about what the jealousy is pointing at. Quite often it isn't really about the metamour. It's about the relationship with you: not enough time, not enough predictability, a plan that changed without warning, a sense of always being the one who gets bumped. Metamours cop the blame for a fair bit that is really an unfinished conversation with the hinge.
So ask something concrete, like "What would help you feel secure with me this week?" The answers are usually smaller and more doable than people expect. A goodnight text on the nights you're away. A standing date that doesn't move. Hearing about a trip before it's booked rather than after. Those are things you can actually do. "Stop being jealous of her" isn't.
4. Take the feeling seriously without agreeing with the verdict
When a partner says "she's trying to push me out," there are two things in that sentence. There's a feeling (scared, sidelined, less important) and there's a verdict about the other person's intentions. You can take the feeling completely seriously without signing off on the verdict.
That might sound like: "It makes sense you'd feel pushed out after that weekend. I don't think that's what she's trying to do, but I get why it landed that way, and I want to work out what would help."
This is where defending one partner to the other usually goes wrong. The moment you argue with the verdict, the person hears you arguing with their feelings. Start with the feeling. The verdict can wait.
5. Ask for civility, not friendship
Many hinges are quietly holding onto a picture of kitchen-table polyamory, where everyone has dinner together and the metamours send each other memes. If that's what you hoped for, it's okay to be sad that it isn't happening. It's probably also time to put that picture down for a while, because pushing two people toward a closeness they don't want tends to make them resent the push, and you.
What you can reasonably ask for is a floor. Something like: you don't have to be friends, but I need you to be polite when you're in the same room, to not run each other down to me, and to not ask me to choose. Plenty of Vs run well as parallel polyamory, where the metamours rarely cross paths and nobody minds. The aim is a structure all three of you can live in.
6. If they want to meet, keep it small
Sometimes metamours mostly dislike each other as ideas. Neither has spent real time with the other, so each has built a version from fragments and worst moments. A short, low-stakes meeting can take some of the heat out of that: coffee, somewhere public, an hour, with an easy way to leave. Not a dinner party, and definitely not a weekend away together.
Only do this if both of them want to. It's also worth asking whether you should be there. Some metamours do better with the hinge present as a buffer; others find it easier without an audience.
7. Know where the line is
To be clear, not every conflict between metamours is jealousy to be worked through. If one partner is threatening the other, turning up uninvited, going through your phone, or using "it's them or me" to control what you do, that isn't a feeling to get curious about. That's a safety problem. The same goes if you're being pressured into agreements you never wanted to make. Talk to someone outside the relationship, and if anything feels unsafe, 1800RESPECT (1800 737 732) is available 24 hours a day.
Looking after the hinge
All of this asks a lot of you, and most hinges only start looking after themselves once they're already running on empty.
A few things help. Give yourself some transition time between partners, even fifteen minutes on the tram, so you aren't arriving at one person's place still buzzing from a hard conversation with the other. Keep at least one friend who isn't in the polycule and doesn't have an opinion about any of them. And notice when your body starts scanning: the tight chest when a message comes in, the rehearsing of how to bring up Thursday. That's useful information. It usually means you've taken back a job that isn't yours.
It's also worth saying that sometimes a V can't hold. If you've done this work, the conflict hasn't shifted, and you're the one paying for it in sleep and stomach aches, that isn't a personal failure. Longevity is not the measure of success when it comes to relationships. Sometimes a different structure is the kinder one for everybody, you included.
Where therapy fits
You can do a lot of this on your own, but it's hard to see a system clearly when you're the pin it all hangs off. At Unison we see hinges on their own, hinges with one partner, and occasionally the whole V in the room together. Nobody will ask you to explain what a metamour is, or suggest that the polyamory is the problem. You shouldn't have to educate your therapist to get good therapy.
Sessions run from our Carlton rooms or by telehealth anywhere in Australia. Have a look at our polyamory and polycule counselling page, or get in touch if you'd like to talk it through.