Idk about stockholm syndrome but Bum was already inlove and stalking sangwoo right from the start. So this isn't stockholm syndrome, this is something else. Bum hates sang woo, but at the same time his feelings still lingers. This is the type when ypu want to get over someone, but can't because they still show that you're special and in Bum's case his stalking had bear fruit and the apple of his eye is paying attention to him and is making him special (sometimes) the reciprocation bum is getting is confusing him.
Well, thank you for correcting me. :) It's just that Bum's situation reminded me of Stockholm syndrome.
I am afraid that Bum might develop a Stockholm syndrome* to Sangwoo, sooner or later... though it is quite evident how Bum is a bit shaken whenever he remembers "Sangwoo's warmth".. I don't want Bum to turn a blind eye to Sangwoo's hobbies/mistakes someday.. Ahh, Bum I'm waiting how you'll dig within Sangwoo's past "to heal" and "to change" him into a better person.
(Bc like omg, I don't want to have a bf wherein my life span gets shorter day by day :( )
*Stockholm syndrome - The hostage victim develops a compassionate and romantic feelings towards their kidnapper/captors.