
He wants to be with Sangwoo. He's there, missing him, masturbating to thoughts of him, speaking his name. Please. He wants nice Sangwoo...but nice Sangwoo doesn't last. It's a false construct.
And anyone who'd rather be with a serial killer and cover for him in order to not be alone...well, again, he's better off dead. This is not someone who can cope in this world.
You don't need self-esteem to know right from wrong. That is an error. People with low self-esteem can know that rape is wrong, murder is wrong, beating up kids is wrong, setting fire to houses is wrong, robbing a bank is wrong. Esteem is not a factor in that. Self-esteem may be a factor in seeking better things for yourself--and I say that as someone who most of my life pretty much thought I was shit and hated myself and even tried to kill myself. But even then, I knew lying, cheating, raping, killing was wrong...

And yet he tried to escape several times before Jieun's death, claiming that going back is a 1000 times better than being w/ Sangwoo( http://www.mangago.zone/read-manga/killing_stalking/mf/c007/53/).
He only "loved" Sangwoo because he saved him in the military once and was so the first one who showed him kindness. That made Bum love him. He seeks affection and is being mindfucked by the real, evil Sangwoo sometimes showing him kindness. It confuses him. Bum has BPD, so he has mood swings as well.
Bum had nowhere but his to uncle to go( http://www.mangago.zone/read-manga/killing_stalking/mf/c007/26/).
He never consensually covered for him.
It was Sangwoo who forced him( http://www.mangago.zone/read-manga/killing_stalking/mf/c032/42/), lied to him( http://www.mangago.zone/read-manga/killing_stalking/mf/c032/54/) and made him lie( http://www.mangago.zone/read-manga/killing_stalking/mf/c032/87/).
Bum HIMSELF hid Seungbae and lied to Sangwoo( http://www.mangago.zone/read-manga/killing_stalking/mf/c030.1/10/). He's obviously not fine with Sangwoo being a evil piece of shit. Bum is just afraid since Jieun's death that Sangwoo may shove everything at him and lost all hope of escape( http://www.mangago.zone/read-manga/killing_stalking/mf/c029/55/).
So no, I disagree w/ him being better off dead. Sangwoo is, not Bum.
He's a perfect example of Stockholm Syndrome and other mental illnesses together in one.
I meant is as together w/ his other mental illnesses. Not just his low self esteem
Him not knowing right from wrong can also be easily explained that he had no parent figure to teach him stuff. Looking at him holding a spoon for example. Nobody teached him how to hold one.
I'm sorry, I can relate.
.........all of the characters of this manga are trash individuals and trash people and people still want them to be together or root for this shit......and yet I keep coming back to this nonsense to see if there is any improvement what so ever. There is no movement in plot it's just at a stand still and nothing is straightening out for anyone....just getting worst and worst and worst.....lord