Donghae's Past Crush Broke his heart

Donghae of Super Junior recently revealed how a past crush broke his heart.
He stated on a recent episode of Strong Heart, “Whenever I went out with a girl, I got dumped. I wanted to know the reason why. When I was a junior in high school, I went out with U-Know Yunho and saw my ideal girl. In the end, I asked Yunho for her number and we got to liking each other. I stayed in touch with her for 1 year, but after every 6 months, our contact would stop for 1 month.”
Donghae revealed that the girl had in fact betrayed him, stating, “I found out that her boyfriend had been studying abroad and that he came home every 6 months. For that 1 month he was here, she would be hanging out with him. When he left, she would contact me. Even though I knew what was happening, I still liked her.”