Yes!! Chanwoo is behaving like a little bi*** because of how hurt his pride is. He is a masochist who loves humiliations (from his past, toxic relationships and they obviouslydid worst than that...) and now that MD is giving him a little bit of that... Every thing is now seen wrong. The new guy seems like a capable slave.
However as a sadist... I feel the need to make Chanwoo turn and do as I say (if I was there and if I was MD). I hope MD does the same thing he did before they took a break: say the safe word and stay with the new guy (๑•ㅂ•)و✧ He obviously isn't doing this because he is jealous nor because he feels bitter. It is quite obvious that he enjoys and loves the hurt expression Chanwoo has, and wants to see him cry. Haha!
The new guy isn’t that bad honestly. He was very desperate (2 years) and he pretty much only hurt Chanwoo’s pride (their relationship was at a point where they were asking MD for permission).
I know it won’t happen, but i seriously wouldn’t mind if new guy ended up with MD.