2AM's Jinwoon recently revealed the reason behind his break-up with his girlfriend on an episode of KBS 2TV's "Happy Birthday." Jinwoon stated, "In my past, when I dated a girl that I truly liked, she always used to tell me not to cheat on her. In order to keep that promise, I never even looked at another girl." He continued, "But eventually, she was the one that cheated on me with another guy, which is why we broke up. I seem like the type that would be really nice and understanding, but I'm actually quite conservative. I don't want my girlfriend, and other girls in general, wearing clothes that expose a lot." He concluded by adding, "It's more difficult wearing such short clothes, I don't understand why they do it." Source + Photo: Star News