William and Amy are made for each other. William is ruled by numbers. Amy is ruled by her diet rules. When her best friend Kat dies, she decides to take the trip to Paris the two had been planning during Kat's illness. There she finally breaks some rules and realizes there is more to life than following rules.
I was going to throw the book at the wall if I had to hear more about Amy's diet rules. They were boring and messing up her life. I loved it when, in Paris, nothing went as she expected. She lived spontaneously and found out it was fun. Though Kat was dead, her presence was felt throughout the book. She was able to persuade Amy to go to Paris. William was a jerk. He was so similar to Amy it was hard to tell them apart.
The book ending much better than it began and I am looking forward to the sequel