Taken out of context, this looks to be yet another case of a dude asking the wrong chick to hit him in the face when he's drunk. (Let's just pause for a second to say there's absolutely nothing to gain from asking a girl to punch you. The pleasure is purely Freudian.) Maybe she turned him down. Maybe he thought this was the only way to reclaim his manhood. There are other ways, dog. Like getting with another chick.