An Abundance of Katherines by John Green

Colin is a child prodigy and anagramming genius, who wants to be famous. Hassan [not a terrorist] is his lazy best friend who prefers to be a couch potato and has been delaying his entry into college. On graduation day, Colin is dumped by his girlfriend, Katherine the 19th, and Hassan decides it is high time the guys take a road trip. You see, Colin has a thing for girls named Katherine and K-19 was the 19th time he’s been dumped by one. So on this road trip, Colin has decided to use his heartbreaks to design the Theorem of Underlying Katherine Predictability, a mathematical equation that will predict the future of any relationship. Colin and Hassan soon find themselves in the middle of nowhere, Gutshot, Tennessee, where they meet Lindsey Lee Wells. She’s not a Katherine but does have a boyfriend named Colin. Colin and Hassan soon realize that the middle of nowhere might be part of the equation for predicting their future.