This has potential as a concept. I just hate cheating ex boyfriends to justify bad behavior from female leads. Like clearly that perfume scent she smelled was because he’s dating someone else. And clearly his abusive behavior is a plot point to justify her cheating… obviously abuse is very different person to person and I think the way it’s portrayed is very similar to IRL Korean fboys and abusive men. But clearly he was painted to be this perfect guy until the story started… that doesn’t make sense. Theres no development there’s no reasoning it’s just a plot point so she can go fuck the hair salon guy.