Why is he comfortable telling me this stuff?

Anonymous
This guy that I'm friends with is comfortable telling me embarrassing personal things that he doesn't tell his girlfriend. Yes , his girlfriend is new. But so is our friendship.

He recently got too drunk and woke up pooping and puking himself. He felt very comfortable telling me about everything that happened (Not in detail, just simply an overall thing)
But he said he was too embarrassed to tell his girlfriend that he got too fucked up and ended up doing that.

So why does he feel comfortable telling me this but not his girlfriend?

This isn't some twisted way of asking "is he into me" as I've seen some people be brutal on here.. just genuine curiosity cause men be weird.
Why is he comfortable telling me this stuff?
4 Opinion