Cassie is writing a letter to the boy whose heart she broke. She’s trying to explain why. Why she pushed him away. Why her father got so angry when he saw them together. Why she disappears some nights. Why she won’t let herself remember what happened that long-ago night on the boardwalk. Why she fell apart so completely. Desperate for his forgiveness, she’s telling the whole story of the summer she nearly lost herself. She’s hoping he’ll understand as well as she now does how love—love for your family, love for that person who makes your heart beat faster, and love for yourself—can save you after all.