John Green - An Abundance of Katherines

In John Green's novel An Abundance of Katherines, former child prodigy Colin Singleton finds himself perpetually on the receiving end of breakups from girls named Katherine—19 times, to be exact. After Katherine XIX dumps him, a heartbroken Colin is convinced by his best friend, Hassan Harbish, to embark on a spontaneous road trip. Their journey leads them to Gutshot, Tennessee, where Colin attempts to formulate a mathematical theorem to predict the future of any relationship and avoid being the "dumpee." He meets Lindsey Lee Wells, a local girl who challenges his intellectual approach to life and love. The coming-of-age story is a witty exploration of self-discovery, identity, and the realization that not every problem can be solved with a perfect equation.