
I agree with you in some ways! But I also see Sangwoo as someone incapable of love. He's a sociopath after all. He's very intelligent and he knows how to play his cards right in order to get things to go his way and keeping Bum around has become something that he knows he will benefit from. He does have a fucked up sense of what love is and underneath it all, he's just as fragile as Bum. But he sees Bum as more of a pet or servant, someone who makes him feel stronger than he really is only because he has power over him. And that isn't genuine love.

Agree completely. If Bum becomes a hindrance, Sangwoo will most probably not hesitate to ditch him though there's a slight chance he won't.

The thing is. Bum has already been a hindrance to him for a while. There have been several points where it would have made sense for Sangwoo to kill him but he didn’t.
I don’t think Sangwoo is as intelligent as a lot of people are making him out to be. I don’t think he’s dumb by any means but he is by no means a genius. Emotionally Sangwoo is almost childlike. He’s enotionally violative and without empathy but he does form attachments. I believe that he’s begun to view Bum as a replacement for his deceased mother and is currently emotionally dependent on him. You saw how much he freaked out when Bum slit his wrists.

Yes. I agree that Bum is a replacement for the love that Sangwoo got from his mother and when Bum slit his wrists, Sangwoo had major flashbacks of his mother. Growing an unhealthy attachment to someone isn't exactly love. He's definitely childlike which also goes hand in hand as to why he can never truly love someone at this point. I can't wait to see more details about Sangwoo's past!

I think where we disagree is on the exact definition of “love.” What does and does not constitute as Love is an incredibly murky grey area that almost everyone has their own opinion about.
I believe that classifying some people as incapable of love is not entirely accurate. Sangwoo is incapable of Love in a conventional or healthy way but I don’t think he’s incapable of it all together.
See, I don’t see love as something inherently positive and there are many unhealthy types of love. I think people try and say that people like Sangwoo can’t love because they only define love as the healthy sort of love, which is completely fine since opinions are objective. I just personally disagree.

That's okay. To me, love is indeed a wholly positive thing. And people in abusive relationships may have some sort of twisted idea of it. Sociopaths might even tell their victims that the things they do, they do because of love. Maybe Sangwoo isn't incapable. In fact, I'm sure he isn't but he's much more complicated and so much more selfish than that which is why I love this manhwa so much! I've dealt with my share of sociopaths and I'm sure you probably know what a sociopath is but here's a link that I think captures my point pretty well https://m.wikihow.com/Spot-a-Sociopath ╮( ̄▽ ̄)╭
I believe that Sangwoo does genuinely love Bum. Now before you get your torches and pitchforks let me explain. People always say that horrible or unstable people can’t experience love because it’s a thing that most people have overwhelmingly positive associations with but I don’t think that is necessarily true.
Love is something that everyone has a different definition of and one person’s devotion is no more valid than anyone else’s definition.
Not all people love in a manner that is healthy or beneficial to the people they love. I am sure some abusive parents love their children and beat them with the best intents but does that make their actions any less horrible? No. Stalkers say that the love the people they stalk. Are we able to tell these people the love they experience isn’t love because it’s twisted and unhealthy?
I believe that Sangwoo loves Bum because love to Sangwoo has never been healthy. He appears to love Bum the same way he loved his mother and I think we can all guess how fucked up that relationship was.