Team Edward is a reference to the Twilight book series by Stephenie Meyer. They are about as addicting as BDW! THe first movie is out and the lead character looks a lot like the guy that plays Chuck Bass.
I want to know why Lily was institutionalized too! If I remember correctly, there was some allusion to her having (or not having) Rufus' baby.
The Lily/Rufus relationship timeline just seems off! Maybe I just suck at math, but think about it. They always refer to him as being a big-time 90s band. If Serena is 18 and it was 2008, that would mean she would have been born in 1990. If that is true, she would have been alive and Lily would have been living the rich lifestyle, not hanging out with Pearl Jam, KWIM?