Nicole Richie is pissed that DJ AM is dating. Apparently Nicole was pissed off when DJ AM's new hot date showed up at her birthday party hosted by a teen magazine. She went as far as having security build an imaginary rope around her where no one she didn't approve of would be allowed. She is a hypocrite because just last weekend she was playing it up for the cameras with her new squeeze. They were gazing into each others eyes, giving high-fives, and holding hands. Can't have your cake and eat it too Nicole!