Title: Return to Paradise.
Author: Simone Elkeles.
"Caleb Becker left Paradise eight months ago, taking with him the secret he promised to take to his grave. If the truth got out, it would ruin everything.
Maggie Armstrong tried to be strong after Caleb broke her heart and disappeared. Somehow, she managed to move on. She's determined to make a new life for herself.
But then Caleb and Maggie are forced together on a summer trip. They try ignoring their passion for each other, but buried feelings resurface. Caleb must face the truth about the night of Maggie's accident, or the secret that destroyed their relationship will forever stand between them."