Like for me, the perfect plot for this would be, if Dan realizes that jaekyung is so f toxic, and after some time he would start hating him and leave. Then jaekyung realize that he actually want Dan to stay by his side (before he know that he loves him), and try to do everything to get Dan back. But, like begging, crying, being nice and lovely, go to therapy xD
I know its pretty common, but I just want to see jaekyung on his knees crying to Dan to love him back, hehe