Well, I don't consider it chasing arc but they break up and the top has like separation anxiety so I remember him begging juwon not to break up (they do) but it gets solve really fast.
The top the moment he realizes he fell in love with juwon changed, stopped being a completely asshole and was half one. He would get annoyed easily but started getting clingy to the point he hates juwon being away or being with family (that's why they broke up) when they got back together they started being healthier and the top is often doing the effort of not being annoying or harsh with juwon so is really cute

The novel is reallly good for this. I totally recommend it . Cried my heart out for the top as much as bitch he is in the beginning