Even after all these chapters i simply can't make myself to like Bum,not one bit.He's just...

Yeah totally ! Everybody talking about how crazy sangwoo is but let me tell you that Bum is as creepy as him -.-

SO FOR THE WHOLE TIME BUM NEVER SMILED AND ONCE HE SMILED IT'S CREEPY, AIGHT

I'm sorry but you haven't read my comment thoroughly.I never said that his smile is the only thing creepy about him,nor that he was creepy specifically this chapter.i clearly wrote "after all these chapters"which means i didn't like him from chapter one,and the reason why i wrote it after this chapter is because this was the first "happy bum" chaper in which the author obviously tried to make us to like him but even still it didn't work.I'm also kinda antisocial and was bullied a lot,but even for my standards Bum is still way too weird,creepy,has disturbing aura and,soon enough apparently,going to turn very psychotic(even though he already was)

I was being sarcastic.
And I doubt Koogi was trying to make us like him that much in the chap.
She specifically made hus happiness come weird, since it's unusual to see him like this.
I'm sorry what you went through, but Bum isn't like this because he was bullied(Yes, that was a part of why, but he was already broken before).
The difference as to why Bum and Sangwoo have a different aura is because
1.Bum isn't a Psychopath, Sangwoo is a Psychopath.
Both Psycho-and Sociopaths can trick their victims with their looks.
2.Bum was never loved by anyone, Sangwoo was by his mom, or.at least lied to himself that he was loved by her which made him feel loved.
3.Bum was undernourished by his family which made him now don't want to eat much, Sangwoo from the looks by it, at least got to eat.
4.Bum was abused by his uncle until he met Sangwoo who then abused him.
Literally his whole life is filled with abuse.
Patents dead since little, being abused and undernourished by his only left family members since Kindergarten( https://vignette.wikia.nocookie.net/killing-stalking/images/6/6f/Lilbum.jpg/revision/latest?cb=20180225043726), bullied in school,no friends, then raped as a young adult, sexually assaulted in the military, etc.
It makes sense why he is like that.
While both have a sad past, Sangwoo felt loved, Sangwoo had friends, Sangwoo looks good to everyone, Sangwoo kills and gets away with it for years, etc.
Bum has nobody though and the only reason Sangwoo didn't kill him was because he reminds him of his mom.
I can but only feel bad for him.
He doesn't know love so he thought what he did is how to express love.
Too bad the guy he stalked was a serial killer.

*Sangwoo is a Sociopath.