Taken By The Bad Boy by Kelly Hunter

Pete Bennett: this maverick playboy revels in the thrill of the chase. He never falls for a girl; she falls for him, and he's the one to walk away…

In Greece for the summer, Serena can't resist the glint of sin in Pete's eyes. Soon the baddest of boys has made her his Greek island mistress. Their supposedly temporary affair is hot and heavy. But one month in, Pete should be ready to roam. So what's keeping Serena in his arms?