The book "Diary Of A Teenage Girl" is a book that I think all girls can relate too. The girl in the story, Caitlin, has problems with friends, boys, and her relationship with God. Not to mention that her Dad has moved out, and may be cheating on her Mom due to a note addressed to Belinda, which is not her mother's name. She faces a lot of problems throughout the year. It's interesting to find out how she handles things.
Note: The author, Melody Carlson, has a number of Diary of a Teenage Girl series.