There's a large elephant in the middle of your living room, and neither of you dares talk about it.
It doesn't matter what the elephant is. Truly. Maybe you're not sure you still love her. Maybe you can't stand how he behaves with the kids. Maybe one of you hasn't forgiven the other for the idiotic decisions that wrecked your plans. And maybe you simply haven't slept together in a long time.
I told you — it doesn't matter. What I just described is the situation of roughly half the couples around you.
The result is bleak, tormenting, and above all unnecessary: you've stopped talking to each other.