Bipolar Lover

This discribes a person who takes love so easily but sometimes seriously. This happens when the person have had a hard in a relationship in the past.

Justin always change girlfriend , but once he found that one girl. He thinked she'd be the best among all of his girlfriends. But then when they broke up , justin went to his old habit ,changing girlfriend like changing cloth; bipolar lover. sometimes he gives a fuck about a relationship but sometimes he doesn't.