I've seen big men cry like babies at a mere slap-the real test would be for you to punch him in the arm. If he stiffens up, he's a keeper, if he cries out loud, ditch him..and if he can't take a joke and tries to hit you back..kick him in the balls and loss him like a bad habit.
I don't know him personally, I've heard things about him though.
That's what girls do don't they, they give you make-overs and pretend to be your friend-even though just that previous year the same girls made fun of you for being stick thin. Atleast guys are honest about their feels about you.