Eric: Look, Hyde, all I know is that you're talking to my girlfriend, and I don't like it.
Hyde: Hey, man, I was friends with Donna before you ever became her little boyfriend.
Eric: Hyde, you're pissing me off.
Hyde: Why don't you think, Forman? You get to make out with one of the hottest chicks in Wisconsin, while I'm being all sympathetic and relating my crappy life to her, and I'm pissing you off? You're supposed to be the friend and I'm supposed to be the make-out guy. Now that I think about it, you're pissing me off!