no, no, no...bum isn't in love. it was a crush. and now he sees things more clearly. though he is scared. he had a terrible life. where will he go from here? so, what little he is getting from sangwo is good enough to have him confused. and sangwo is taking advantage of his vulnerability. in that sense i like sangwo he is an amazing antagonist. smart and charming. love him or hate him, in the end he is a psychopath not capable of loving. it is a game for him. he is in as long as its fun.
I don't think Bum is in love or has developed Stockholm syndrome. He's terrified in the situation and can't run. He doesn't want to develop a false sense of security like he did back in chapter 9. Although Bum was in public I don’t believe it was the best opportunity to escape. Bum now has crutches but he is still only able to move at a slow pace. Since Sangwoo was only a short distance away he could have easily have caught Bum if he tried to run. I think part of the reason Sangwoo feels comfortable taking Bum out in public is because it was late at night. The store had few other customers so if Bum did try to cry for help it’d be less likely to make a scene. Sangwoo is a pretty charming person so he could have easily convinced bystanders that it was a misunderstanding and that all was well in the situation. In a more crowded store that would have been harder to pull off. He also threatened Bum before entering the store “Don’t piss me off. You’ve been cutting it close”. I can only imagine how horrific a failed escape would be after that.
Like, I'm sorry but Yoon Bum is kind of an idiot. I don't know if he still likes Sangwoo or if has developed Stockholm or something, but like in Chap. 14, there was a fucking lady in the store just a few meters from him. Not only that but Sangwoo was busy and he seemed to be for quite a few minutes. He was out, he wasn't chained to anything and now he was able to walk. Why didn't he go to that lady and asked for help? Why didn't he scream at her for help? And the other thing: Sangwoo said he was tired of it all, can't you see that some shit is going down? Can't you see that by pleeding/screaming for him you are giving him more power, Bum?? Geezzz...