Theme and Summary

In my book Crossed by Ally Condie, it's about how Cassia has to leave the outer provinces, which is her home society because she broke the law. She was previously matched with her best friend Xavier and they were supposed to be together, but Cassia fell in love with a boy named Ky. Since Ky had to leave since he broke the law Cassia wanted to find him. She found out that he was being forced to basically fight and die. In the book she's searching for Ky, and pretending to be a rebellious youth like K, or an abberation. She escapes from it and travels with her friend trying to find him, going day and night without any food or water. I don't know the theme of the book yet, but my guess right now is it's probably if you love somebody, never give up and keep fighting for them. So far I really like this book and can't wait to finish it.