Salem Falls by Jodi Picoult 

Jack buries his past, content to become the mysterious stranger who has appeared out of the blue. Addie, desperate for answers, must look into her heart — and into Jack’s lies and shadowy secrets — for evidence that will condemn or redeem the man she has come to love.

When Jack St. Bride arrives by chance in the sleepy New England town of Salem Falls, he decides to reinvent himself. Tall, blond, and handsome, Jack was once a beloved teacher and soccer coach at a girls’ prep school — until a student’s crush sparked a powder keg of accusation and robbed him of his reputation. Now, working for minimum wage washing dishes for Addie Peabody at the Do-Or-Diner, Jack buries his past, content to become the mysterious stranger who has appeared out of the blue… Read more.