The Silver Linings Playbook by Matthew Quick (audio)
The book is narrated through the eyes of Pat Peoples, and occasionally Tiffany's through letters. A former history teacher who has moved back to his childhood home in Collingswood, New Jersey, after spending time in a Baltimore psychiatric hospital, Pat believes he has been away only a few months, but soon realizes it has been years, and struggles to piece together his lost memories and what has become of his wife, Nikki. He has a hypothesis that life is a film created by God and that its "silver lining" will be the end of "Apart Time" with Nikki. Pat embarks on a plan of self-improvement in order to win Nikki back.