They would have gone to high school together. Devon was the biggest geek around (constantly abused by the jocks, ignored by the girls, etc), and would have had a crush on your girl. Now he's just coming back, (finally) grown into his body, and a surgeon to boot. Initially, he'd woo her mostly to just get back at her for ignoring him in the first place, but odds are wouldn't be able to jerk her around for long before he actually took the whole thing seriously.