
KS not really yaoi. It is more of a psychological thriller. And the whole male/male stuff is what adds to the plot. Its not the focal point of the story. Like the 'relationship' between Bum and Sangwoo is not what ks is about. Its about Bum and his obsession and the mess it leads him in to *poor guy*
And yes, the people who ship them see them like abusive relationship (Harley Quin x Joker, for eg). But if this was all real then we won't ship them. And really that's what I like about Koogi. She has done justice to the characters. Some might say the *rape* in ch 35 was fan service but it was more like Sangwoo showing Bum his place. Sex is like a power play for Sangwoo. Bum hiding things from him-- http://kissmanga.com/Manga/Killing-Stalking/Killing-Stalking-030-005----An-actual-new-chapter-?id=378523#10, and properly playing the part that he wants-- http://kissmanga.com/Manga/Killing-Stalking/Killing-Stalking-032?id=382791#85, leads Sangwoo to show him he is still the man on top (pun intended).

*and not properly playing
The author didn't want it to be seen on a romantic level at all.... I ... I uh think they underestimated us in the yaoi world Fucked up? Absolutely. Very fucked up? Absolutely? Still a very fucked up romance thing in there in my eyes? Yep lol