@Mr Giovanni   Best Friends sleep with their friends significant other a lot. It is not as uncommon as you think. I do not really blame Ho-in. This is a man who been through sh** to get Chunwoo. He has been calm this entire time. He has finally snapped. He was also calm when it came to Chunwoo and Taesoo. I assume he was because they have history with each other. But this is his best friend we are talking about. How would you feel if your best friend (who knows everything that happened between your significant other you) and your significant other (who pushed you away in the past for someone and is doing it again now) were found in a compromising position? While you already snapped before you even got there. They put themselves in this situation. -from a person a few comments above (homosexualitea), I think they explained this very well

After this chap and the next one, Ho In actually upsets me. Yellow hair is his literal best friend a...