After pondering over this question for a few moments, he replied "false." As soon as he uttered his answer he was shocked by the lie detector, to the amusement of his cast members.
Yoo Jae Suk grabbed the opportunity to poke him on the embarrassing issue, asking "You still can't forget her, huh," while Lee Kwang Soo pointed out that it's a dangerous habit to remain so attached to a former flame, as noted by Allkpop.
For all we know, She may be dating someone and that person would be uncomfortable hearing how KJK still "cant get over her" or she may be irritated by how these rumors are making her hard to find a bf cos everyone seems to think they are liking each other." Kim Jong Kook answered firmly, "No," but the lie detector revealed that he was lying about his answer!I think after RM ends, the whole KJK and Yoon Eun Hye thing will come to an end finally.They have have denied dating rumors ever since but it seems like Kim Jong Kook wants these rumors to start up again.On a radio interview with Choi Hwa Jung, he picked Yoon Eun Hye as his ideal type in terms of looks.