Oh muffin, we all know this genre. Staying apart doesn't make money or sexy story xD
I know although it could be interesting if they got back together, another drama, more sex scenes, Jaekyung whould become a better person, but in the ent they wouldn't ended up togenther. Maybe that actor could have more screen time.
Sorry to break it for you but I think it's gonna be like BJ Alex. Seems like the author loves this trope
Unfortunately
I'm happy they are separate now, but please don't turn it into another BJ Alex. I wish they never go back together. I'd prefer them tho have another partners, or someone who'll push Jaekyung to be a better person.