The boy book - E. Lockhart

Here is how things stand at the beginning of Ruby Oliver's junior year at Tate Prep:

Kim: Not speaking. But far away in Tokyo.
Cricket: Not speaking.
Nora: Speaking - sort of. Chatted a couple times this summer when they bumped into each other outside of school - once shopping in the U District, and once in the Elliot Bay Bookstore. But she hadn't called Ruby, or anything.
Noel: Didn't care what anyone thinks.
Meghan: Didn't have any other friends.
Dr. Z: Speaking.
And Jackson. The big one. Not speaking.

A tale of boys, boobs . . . and penguins. Another riotous trip into the mind of the inimitable Ruby Oliver.