TV show: Gossip Girl

It's difficult to argue that Leighton Meester does not perfectly play Gossip Girl's Blair Waldorf. The actress/singer has uncannily made the most snarky, conniving, over-dramatic spoiled brat on the New York-based series actually sexy enough for us to want to argue with. Besides, if you've seen her arguments with on-screen lover Chuck Bass, you'd know they end in vengeful, passionate intercourse. So, can anyone tell us what frustrates her the most?