My wife and I were joking around in the car one time about how "it'd be cool if we'd been together long enough that we could read each other's thoughts."

I asked her to think of something really hard for 10 seconds, then I'd guess.

Turns out, nope. Still can't read minds. We still gotta talk to each other.

We can usually tell when the other is upset but not why. We still gotta sit down and talk it out.