Memoirs of a Teenage Amnesiac - Gabrielle Zevin

Above all, mine is a love story.

And like most love stories, this one involves chance, gravity, a dash or head trauma.

It began with a coin toss.

The coin came up tails; I was heads.

When Naomi wakes up in a hospital bed, she has no idea how she got there or what has happened during the last three and a half years of her life. She doesn’t remember that her parents are divorced, or who her friends are at school, and she honest even know if she has a boyfriend or not.

When Naomi gets back to school she starts piecing the fragments of the last three and a half years together, and soon it is clear that she may not want to be united with her past quite as she left it.