i came here cause of a cheating uke tag, what chapter does he cheat?

I don't know if u would call it cheating but around ch 29, he starts dating another guy and the seme is outside the door, aware of it

this is one of the reasons I can't forgive the uke, the pain Jonggu had to tolerate and then forgiving the uke basically because he has to be a good dog to his master and make him happy