Seeing your side of the story, I say your friends all kind of...well...suck. You seem like the good heart out of the whole group. He plays a mean joke on you, and you are supposed to just be okay with it because he has your other "friend" up his butt kissing it every second? For what? Does she want in his pants?
I want to know why she thinks you are mean? is it because you don't suck up to him like she does? And reward him with a stupid slobbery smile when he does someone else wrong?
You can do better for yourself. Get you some real friends, and dump these trashy people.