Stolen

I've found it!!! Somebody was trying to explain a book to me and I remembered reading it but I couldn't remember what it was called! It's Stolen by Lucy Christopher.
Although I'm pretty sure none of you were the one who was explaining it...
Here's the description:
"A girl: Gemma, sixteen, at the airport, on her way to a family vacation.

A guy: Ty, rugged, tan, too old, oddly familiar, eyes blue as ice.

She steps away. For just a second. He pays for her drink. And drugs it. They talk. Their hands touch. And before Gemma knows what''s happening, Ty takes her. Steals her away. To sand and heat. To emptiness and isolation. To nowhere. And expects her to love him.

Written as a letter from a victim to her captor, Stolen is Gemma''s desperate story of survival; of how she has to come to terms with her living nightmare-or die trying to fight it."