Mason was a transfer student from England, who fell in love with Alex. They date, and she later finds out he is a werewolf.
Wanting to help her brother, Justin, find his girlfriend, he sniffs her dental floss. It brings them all the way to Transylvania, and his past is revealed when Juliet announces they used to date. He blurts out that he still loves her, and Alex transports home with her heart broken.