That's an option indeed.
I personally find it more likely that Dan will fight back and leave JJ, JJ then ends up troubled because of his Jinx and then comes around to changing so he can get back with Dan again.
Unless a new character is introduced soon, I think we won't get a rival and character development and the drama tag will be the stuff to turn things around.
I kinda want an old friend who's rich and willing to help coming out of nowhere tho. Not even as a love interest, maybe just to clear the debt and make it clear to Dan he doesn't HAVE TO endure things out of guilt/'not being worthy'.
Tho I feel that wouldn't give JJ enough reason to change and become a better person, unless JJ notices sleeping with others than Dan doesn't help his Jinx so he's trying to persue him and change himself to get him. I can totally see that scenario coming as well if we get a rival popping up and then up n leaves. ╮( ̄▽ ̄)╭

although this art style is beautiful, this story is really cliche. i bet u doc dan is going to have a new love interest and jaekhyung is going to act like he doesn't care, but then does then they have sex and end up together.