9. Having To Learn About Girl Stuff
There's some stuff that should just remain a mystery between men and women, but you've found that being a friend to a girl means you find out all the gory details that you've trained yourself to ignore all these years. Unfortunately because she loves you, she'll literally tell you anything that she'd be too embarrassed to talk with a boyfriend about. You know it should probably feel good to know she's that comfortable around you, but you still don't appreciate the mental scarring.