#GossipGirl: In the constant battle for the spotlight, Blair is outraged when Serena takes the lead in Eleanor Waldorf's runway show. Never one to stand idly by, B switches the dress S is supposed to wear in attempts to humiliate her best friend. ''You mean Serena's on the runway of Eleanor Waldorf's show in a design not made by Eleanor Waldorf?'' she says, feigning concern. B, no matter how destructive you are, you know we love you.