All I Ask by Corinne Michaels

Teagan Berkeley is trying her best. A single mom raising a precocious teen, she may have given up on her dreams, but she’s accepted her life in her small beachside hometown. Now the one person who abandoned her when she needed him the most has returned, bringing back memories of what might have been.
Derek Hartz arrives in town with a teenage daughter-and he’s full of guilt over his failed marriage and the way he ended his friendship with Teagan. He’s determined to set things right with her, but first he needs to gain her trust, something he’s not convinced he deserves.
As Teagan and Derek open up to each other-and confess their deepest secrets-it’s impossible for them to deny what’s always been between them. But just when their happily ever after is within reach, their complicated history surfaces again and threatens to keep them apart. Forever.