
so you bring your new boyfriend to meet MD who you rejected? Well it bit you on the ass didnt it? But it made you realize your feelings so ,all good.

The new guy specifically asks to meet MD because he doesn't want his relationship with Chanwoo to affect his professional career with MD. It's a reasonable request on the surface because MD nad Chanwoo have an intimate working relationship and Chanwoo will literally be at the mercy of a man he rejected.
That he had ulterior motives is a different thing. But his request to meet with MD makes a lot of sense.

It's not normal, but then again, before this MD never actually proposed to Chanwoo. Chanwoo and the new guy are specifically talking about dating AFTER rejecting MD and the new guy suggests getting permission from MD in the first place instead of blindsiding him at a time when Chanwoo will be physically and mentally vulnerable and at MD's mercy.
Unfortunately, the new guy is trash but what Chanwoo feared, MD retaliating DURING THE PLAY is EXACTLY what happened. MD used BDSM to punish the guy who rejected him which is a big NO-NO.
The more I think about it, the more angry I get because even if he stopped at the safe word, he WAS using the play to punish Chanwoo for rejecting him.
Im so stupid. Im thinking ,hey dad is hot ! Not realizing until the last frame who they all were. Its the sequel! yay!