some people have different ways of dealing with their emotions. Maybe he just handles it wierd. The only thing I can suggest is if you talk to him. Maybe something else is bothering him and he's taking it out on you. Just don't stress about it. If he wants to be mean to someone as great as you, then thats his problem. Don't let it bring your day down because he's more immature then you.
Sic Semper Tyrannis