There was a word you two made up. Or a face. Or a noise you made in the car when a specific song came on. It wasn't cute, exactly. It was just yours. And somewhere in the last year — maybe two — you stopped using it. Neither of you announced it. It just went quiet.
That retirement of a joke, a nickname, a bit of shorthand: it doesn't get counted as a fight. It doesn't show up in couples counseling as a presenting problem. But it might be more diagnostic than anything on that intake form.
What Private Language Actually Is
Linguists call it idiomization. The rest of us just call it the weird stuff we say to each other. A mispronounced word that stuck. A reference to a truly terrible road trip. The face one of you makes when the other person is technically right but annoying about it.
It accumulates fast at the beginning. Every shared experience deposits something into the account. A joke from the second date. A phrase that came out wrong once and became the right way to say it. A nickname that would embarrass both of you if anyone else ever heard it.
This is what researchers actually mean when they talk about relational culture. Not the big stuff. The tiny, repeatable, untranslatable stuff. The bit only two people in the world understand.
Why It Disappears
It almost never disappears in a single moment. There's no fight where someone says we're retiring the bit. It fades. You use the joke and they don't pick it up. You say the nickname and something in their eyes is just slightly elsewhere. You do it one more time. Then you stop.
Sometimes it's exhaustion. Two people who are bone-tired don't have the playfulness available to keep a private language alive. The joke requires a little energy. The callback requires someone to be paying attention. If neither of you is, it dies of neglect — not malice.
Sometimes it's distance that arrived so gradually you didn't catch it. The two of you are still sleeping in the same bed, still splitting grocery lists, still watching the same shows. But somewhere in there, you stopped being funny to each other. Stopped being for each other in that low-stakes, nothing-at-stake way.
Sometimes something happened. A fight that didn't fully close. A stretch of months where one person felt unseen. An unspoken shift that reclassified the other person from my person to the person I live with. The private language didn't cause it. But its disappearance confirms it.
The Distance It Measures
Most couples can name the big fights. The one about money, the one about the in-laws, the one where someone said the thing they can't un-say. What's harder to locate is the accumulation of small withdrawals: the playfulness that stopped, the in-joke that got retired, the tone that used to be warm and isn't quite anymore.
Couples in distress don't usually stop fighting. They stop playing. Play is what goes first.
— Adapted from relationship research on relational maintenance
Think about it physically. You're in the kitchen on a weeknight. One of you says something that used to be a setup for the bit. The other person gives a small, polite smile — the smile you'd give a stranger who said something mildly funny at a work event. Not unkind. Just not inside. That smile is a data point.
Or you're out — maybe a slow dinner somewhere in Healdsburg, one of those evenings that's supposed to reset things — and you notice you're both performing couple on a nice date without any of the texture that used to make you actually feel like you. The inside jokes would have broken the performance. But neither of you goes there.
It's Not the Joke. It's the Willingness.
This is the reframe. The joke itself doesn't matter. What matters is what the joke required: attention, a little softness, the willingness to be slightly ridiculous in front of another person. Private language lives in the gap where you let your guard down completely.
When couples stop speaking it, they've usually stopped being that available to each other. Not unavailable in a dramatic way. In the way of two people who have unconsciously decided that the other person is a known quantity now, a fixture, and that the particular attentiveness required to be playful is going somewhere else. Into work. Phones. The children. Their own interior life.
Which is worth sitting with, not as an accusation, but as information. Who are you saving your playfulness for? Because you haven't lost it. It's somewhere.
What You Can Actually Do With This
You cannot force a joke back into use. That's a fast way to make both of you feel worse. What you can do is stop waiting for the mood to be right before you're available.
The private language didn't come from effort. It came from being present with each other in unguarded moments. The road trip where someone said the wrong word. The hotel room at Indian Springs where one of you did an impression of the waiter and it was terrible and perfect. The drive back from a Sonoma tasting where you made up an entire fake couple you'd just seen and gave them an elaborate backstory.
Those moments were unplanned. But they required proximity and attention and a willingness to be a little stupid. You can't manufacture them. You can create conditions for them.
Sometimes the old language does come back. A reference surfaces and both of you catch it at the same time and something loosens in the room. It's a small thing. It's also not a small thing at all.
And If It Doesn't Come Back
The retired joke sometimes signals something real and worth taking seriously. Not the end of anything, necessarily. But a sign that you two have been running on fumes of familiarity without the actual current of connection underneath.
If you can look back and name the last time you made each other genuinely laugh — not politely laugh, genuinely — and that memory is more than a year old, that's worth knowing. Not as a verdict. As a starting point.
The private language you built was never just comedy. It was evidence that you were paying attention to each other. That you found each other interesting enough to encode. To have a secret with. When you start paying attention again — really paying attention — new language usually follows. It always has.
Related: The Compliment You Stopped Giving examines another micro-behavior that signals distance before the distance feels real. And if the silence in your house has started feeling like a different kind of quiet, Comfortable Silence vs. the Silence That Is a Wall is worth reading next.
