From the back cover:

When Paige Townsen gets plucked from high school obscurity to star in the movie adaptation of a blockbuster book series, her life changes practically overnight. Within a month, Paige has traded the quiet streets of her hometown for a bustling film set on the shores of Maui, and she is spending quality time with her costar Rainer Devon, one of People's Sexiest Men Alive. But when troubled star Jordan Wilder lands the role of the other point in the movie's famous love triangle, Paige's crazy new life begins to resemble her character's.
In this exciting tale of romance and drama, both on-and offscreen, Paige must adjust to a crazy new life without the daily support of her friends and family, while figuring out who she is--and who she wants--as the whole world watches.