One & Only (Canton) (Volume 1)

Tess McMann lives her life according to the secrets she's sworn to keep: the father who won't acknowledge her, the sister who doesn't know she exists, and the mother who's content playing mistress to a prominent businessman. When she meets the distractingly cute Dylan Kingsley at a prestigious summer program and falls in love, Tess allows herself to imagine a life beyond these secrets. But when summer ends, so does their relationship--Dylan heads off to Canton College while Tess enrolls at the state university. 

Two years later, a scholarship brings Tess to Canton and back into Dylan's life. Their attraction is as strong as ever, but Dylan has a girlfriend...who also happens to be Tess's legitimate half-sister. Tess refuses to follow in her mother's footsteps, which leaves her only one choice: break the rules she's always followed, or allow Dylan to slip away for a second time.