During the filming of KBS 2TV's "Happy Birthday", F.T. Island's Lee Hong Ki revealed a painful story of his girlfriend breaking up with him. Hong Ki confessed, 'When I was a trainee, I had a girlfriend, but because of our hectic practice schedule, I couldn't see her a lot. My girlfriend broke up with me. The shock from the break-up made me cry.' Leader Choi Jong Hoon added, 'He cried a lot. He lay on the floor and cried. He wanted to quit being a trainee, and it was very hard for him to prevent that from happening... I also had an experience where I cried after breaking up with a girlfriend during middle school. It hurt so much I couldn't eat.' This episode will be aired on October 4th at 11PM. With these experiences, no wonder Hong Ki can sing lovesick songs so well. Source: Autotimes Picture: Newsen