According to reports, Lee Kwang Soo's , Lee Sun Bin, first crossed paths with him on the sets of their K-Drama, Running Man in 2016.
Lee Kwang Soo: No, I know this song.
I doubt we'll hear much more about their relationship unless they get married or break up.
In the episode, both of them expressed their interest in each other, and this on-screen interest sparked an interest off-screen as well.
In fact, he joked they would get married in a week.
Back in June, when Lee Kwang Soo delivered news of his departure from 'Running Man', Lee Sun Bin was seen showing support toward the actor via Instagram by using emotions such as 'applause' and 'thumbs-up'.