It'll get better once he breaks him and makes him dependent on him, which happens at the end of the main story. Afterwards we'll have around 20 chapters with surprising fluff and normalcy. He'll continue his studies and just live with that psychopath as his boyfriend. Also, since the psychopath will realize that he has completely succeeded, he'll never hit him again over anything he does. Planting fear in his head was all part of his plans and he no longer needed to do it. It's fucked, what can i say.
Genuine question, what has got him so hooked and obsessed? There are tons of gays and girls for a handsome man like that. Also MC was in the same class and seme never bat an eye. Does he like the fact that someone was interested in him and stalking him? Kind of like Sangwoo's switch up from killing mode to lenient mode when Yoon said he was his stalker?
Umm will this get better? I'm at chapt 23 and damn. I've never been genuinely scared again in reading BL since killing stalking. I got freaked out when he want to pull a tooth from mc. Then I wished he did not asked for help from ML when the card got cancelled. It's too much. I feel so sorry for him