Yk what this fr. I HATE THAT HORSE. But one thing I could say is that there was a sexual contract between them that Dan agreed to. Jaekyung despite the fact that he IS AN ABUSER, he's NOT A RAPIST.
The fact that Dan is more emotionally distraught by how the horse treated him says it all, Dan understood his relationship with Jaekyung then.
Tho it don't make the horse's actions any better, it's just that he's a different kind of bastard. And not to defend that motherfucker, but there's different kind of monsters and some are just worst than others. In consideration. Jaekyung didn't force Dan, didn't try to tie him down when Dan walked away from him, didn't physically assault him, but he did disregarded Dan to the point where he just treated Dan as a hole. It's not any better, but it's not the absolute worst.

i really hate that the rape MC experienced is being used as a plot device to give the ML character development and make it look like he's redeemed himself when deep down rapists will never change and they will always remain the same
hes acting like some lovesick teenage boy despite the fact that from the start he had no consideration for MC's feelings when fucking him in a public bathroom or infront of the blonde guy