The Gap Between Loving Someone and Knowing Them

I tried something a few months ago that I’d recommend to anyone who thinks they’re close with their family.

I sat down and tried to journal out what I actually knew about my dad’s inner life. Not his schedule. Not his preferences. Not the things he shares in our conversations. The real stuff. What he worries about when he can’t sleep. Whether he feels satisfied with how his life turned out, or just settled. What he’s afraid of right now, today.

The list was embarrassingly short. This is someone I’ve known my entire life. Someone I talk to regularly. Someone I love. And I couldn’t answer the most basic questions about what’s actually going on inside his head.

That’s when I started paying attention to something I’d never really thought about before.

There’s a process that researchers call relationship decay. It describes what happens to our closest ties after major life transitions, and it’s been studied most closely in the context of leaving home.

The pattern is pretty consistent. After you move out, your family relationships shift from what you might think of as high-bandwidth to low-bandwidth. When you live with someone, you constantly absorb information about them, without trying. You see their moods. You overhear their conversations. You notice what lights them up and what makes them go quiet. You build a detailed, continuously updated picture of who they are.

Once you leave, that passive stream cuts off. What replaces it is something much narrower: phone calls, texts, the occasional visit. These carry updates, but not texture. You learn what happened in someone’s life, but not how they felt about it. You get the headlines and fill in the rest with assumptions.

Over time, those assumptions stop updating. The mental picture you have of your parents gradually freezes. You’re still picturing them as they were when you left, and they’re doing the same with you. Researchers have found that parents consistently perceive their children as younger and smaller than they actually are, even years later. It’s a cognitive bias so reliable it has a name: the baby illusion. The child keeps growing. The parents’ internal image lags behind.

What’s less studied, but I think just as real, is that we do this in reverse. The version of my dad I carry around in my head is from maybe 2017. He’s kept going since then, kept changing, kept dealing with things I never asked about. I just wasn’t close enough to see it happen.

None of this is anyone’s fault. That’s what makes this so hard to talk about.

Drift doesn’t happen because someone stops caring. It happens because adult life is busy, and the logistics of staying in touch are genuinely hard. Different cities, different schedules, limited time. The calls get shorter. The topics get safer. You settle into a rhythm that feels like a connection but mostly functions as a check-in. How’s work? Good, busy. How are you? Fine. Love you. Love you too.

It doesn’t feel like a loss because nothing breaks. There’s no fight, no falling out. More of a slow, gradual flattening. The relationship is still there. The love is still there. But the depth gets thinner without anyone noticing, because nobody ever told you it was something you had to actively protect.

The research backs this up clearly. Simply feeling close to someone does not prevent the actual closeness from declining. You have to do something. You have to put in a kind of effort that goes beyond the usual back-and-forth. But most of us were never taught what that effort looks like, and so we default to the thing that comes easiest: trading updates, checking in, and assuming that because we still talk, we still know each other.

I think the gap between loving your family and actually understanding them is one of the most important things nobody talks about.

Because it’s not just that we don’t know what to ask. It’s that we don’t even realize how much we’re missing. The relationship feels fine. Everyone’s healthy, everyone’s communicating, nobody’s angry. So why would you think something’s off?

You wouldn’t. Not until you do something like the reflection this piece started with. Not until you sit with the actual questions and realize you don’t have answers. Not until you notice that the person you’ve been talking to on the phone every Sunday isn’t quite the person who’s been living their life on the other end of the line.

Your parents aren’t just “mom” and “dad.” They’re entire people. Decades of memories, fears they’ve never named, hopes they’ve stopped talking about. There’s an enormous amount of complexity underneath the version of them you see. And if you’re anything like me, you’ve probably been engaging with maybe five percent of it.

That’s not a failure, and it doesn’t mean your relationship is broken.

But it is an invitation.

Before your next call with someone you love, try this: think of one question you’ve genuinely never asked them. Not about logistics or updates. Something about their inner life—what they worry about, what they’re quietly hopeful for, something they’ve been thinking about lately.

You might be surprised where it goes.