You know how Heidi's always saying that she was friends with Audrina before anyone else? Well, she was also frenemies with her first. Think way back to Season Two, when a tiara-wearing Heidi hosted a birthday party for herself at Le Deux, and Audrina left the party in tears. That may have been the moment we realized Heidi had a knack for public displays of outrage.
But to be fair, Heidi's not the only Hills girl who's turned a friend's evening into a living hell. Even Lauren had her blowups! Check out this notorious clip of Lauren Conrad doling out the now-infamous "sucky person" line, then watch the rest of our friends-to-frenemies video flashbacks!
Credit: MTV Remote Control