Who Loves Kate? — Katherine Applegate

Nina's lost Ben, Aisha's split with Christopher, and Claire hates Kate because she kissed Aaron. But Kate is dreaming of the mystery guy who saved her at Ben's party. Will she ever find out who he is? And can he summon up the courage to call her?
They've all grown up together on a tiny island. They think they know everything about one another...but they're only just beginning to find out the truth.Who loves Kate? She may never find out--unless the guy in question can summon up the courage to tell her. But with Kate still thinking about a boy she may never see again, and with nearly all the island couples breaking up, it looks as if Kate's dream romance may remain a dream forever.