Former Dal Shabet member Subin opened up about secretly dating as an idol.

During the recent filming of MBC's 'Dating DNA Research X', Subin expressed, "The worst person is the person dating a friend or unni close to me me. There are idols who secretly date. One day someone revealed her boyfriend to her members, saying, 'I have a boyfriend now. He's such a good person.' She then found out he had something going on with one of her members in the past." 

The hosts then said, "How shameless of him. Let us know who he is when we have break from filming." Subin responded, "It's not my experience though." 

This episode of 'Dating DNA Research X' airs on March 6 at 11PM KST.