it depends on the parameters of the relationship. you can have an open relationship where you’re romantically involved with someone but sexually involved with other people. if you do this without the other person knowing then yes it’s cheating, but chanwoo doesn’t seem like that type of person.
either way hitting your significant other isn’t ok in any sense unless it’s kinky consensual shit
Bro bdsm and straight up abuse is totally different you shouldn't hit your significant other in any situation (bdsm play is a different story) also maybe it was an open relationship?
Well, I’m not defending the violent boyfriend. But could it be that Chanwoo’s boyfriend hit him because he knows Chanwoo is doing this kind of kinky play with another man behind his back? Like who does that when they have a boyfriend? Doesn’t this count as cheating??