Coming from someone who is in the BDSM community

So I see a lot if people commenting on how a slap is one of the lightest punishments of your in a dom/sub relationship and that you should stop reading if you can’t handle that.
So here’s the thing- if you are in a Bdsm relationship, where both parties have consented to, you’ve established a safe word and how far both of you feel comfortable going, a slap or other forms of physical are something that’s is pretty normal and totally ok.
However! punishment in bdsm is something that come with the play and should be still enjoyed (in some way) by both parties. In this case, neither Chanwoo not MD are enjoying it and MD is only delivering it for the sake of revenge (the whole situation actually), which basically doesn’t really make it part of the play anymore. He knows very well, that Chanwoo is an incredibly stubborn person as well and someone who has been in abusive relationships before and, as a responsible Dominant should stop this, if he sees how uncomfortable Chanwoo is with this situation. It’s a pretty difficult situation since punishment, pushing boundaries and other things are often part of bdsm play, but as I said, since MDs actions seem to be only motivated by revenge or making Chanwoo jealous I don’t think that what he is doing is right or even safe anymore.
I just really hope this situation work out well before it escalates, because that’s something that happens a lot in real life.
Nevertheless I still really love this story but that’s just something I like saying after reading some of the comments. <3