Fan Girl- Rainbow Rowell

Cath and Wren are identical twins and until recently they did absolutely everything together. Now they're off to university and Wren's decided she doesn't want to be one half of a pair any more - she wants to dance, meet boys, go to parties and let loose. It's not so easy for Cath. She would rather bury herself in the fanfiction she writes where there's romance far more intense than anything she's experienced in real life.

Now Cath has to decide whether she's ready to open her heart to new people and new experiences, and she's realizing that there's more to learn about love than she ever thought possible ..