Did you see the scene where Sangwoo takes Bum out to meet his friends, Bum tries to get out of the booth and accidentally falls on one of the guys' lap, at the time Sangwoo is only JUST starting to treat Bum better so he goes overboard in his jealousy, but it's clearly there. He also clearly pretty jealous over Bum's uncle. I get what you mean though, it'll be nice if we can see a scene where he gets jealous over Bum and DOESN'T also hurt him in the process, whether that hurt be through forced sex or verbal. I think it could happen soon, the manhwa's been building Sangwoo's growing feelings up since even a bit before the "proposal" scene, looks like he might start treating Bum better now.
Ikr. I am currently really happy(๑•ㅂ•)و✧
Man this chapter was so cute (=・ω・=) Honestly my last wish is to see sangwoo get jealous (⌒▽⌒) I am a bit scared though that the next chapters are going to be realllyy something sad or something like that (⊙…⊙ )