Bliss by Lauren Myracle (the same author of ttyl and l8er g8er and stuff).
It was okay, but the ending reminded me of another book. It took me a while to think of what it was, but then I realized it was Whale Talk by Chris Crutcher, which is our school's "One Book One School" this year.
mmm... 6/10 I think. Bliss was way too nice, and I guess it just wasn't my type of book. I did like the racism thread through it, and the cult thing, but maybe the high school aspect repelled me.
By the way, if you decide to read it, it takes place in 1969 - 1970, which I couldn't figure out until like halfway through.