Latter would suck because the author portrayed how obsessive anti-social can be. If they want to make it more authentic, Jihwan can only pretend or try to be "normal" by being romantic but always fail because of his condition, esp if never treated by a professional. Soo young may accept or receive him, only after getting treated and seeing good results - but that would not be fun and exciting would it? So yeah, it won't go that route.

I’m really 50/50 on that story, it got psychological potential, it could be Jihwan turning into his dad and doing the same to soo-young with no romanticization and showing how horrific it is, but somehow I’m sure it’s gonna take the usual bl route of romanticized rape and they somehow end up together with redemption when this shit is not redeemable