What is the main conflict in You Know You Love Me: A Gossip Girl Novel by Cecily Von Ziegesar?

"You Know You Love Me: A Gossip Girl Novel" by Cecily Von Ziegesar tells the story of a group of young people from the upper east side of New York City. Born to a world of privilege, the young men and women still have to deal with stressful situations in life including romantic relationships, friendships, and getting into college. The highs and lows of their lives are recorded and published to all by an unknown entity who calls herself Gossip Girl.