Rules for space

When 17 year old Beth Thomas receives a text from her boyfriend, James, she thinks that her world has completely come to an end. He needs space and decides to end their five year relationship. She wants to give him the space he needs, but when the first day of school arrives, she finds that he found the space he needed with her best friend, Jessica.  Will she survive her senior year while watching the love of her life kiss her ex-best friend, or will she find a way to seek out a little revenge?