Here's an explanation. Yeouwoo got pregnant when keith was in his heat but he doesn't remember. Yeouwoo refuses to tell keith that he is the father and he was the one that marked him. Keith then says he wants to get married thinking that they will just be sex buddies(which obviously isn't the meaning of marriage). Then when yeouwoo takes a stroll and keith suddenly appears and takes him to buy clothes(in the process bus the while stock of clothes) and food. Usually keith buys jewelry for his sex friends so Yeouwooo thought that's what he was doing but Yeouwooo wanted to confirm if keith actually like him so he purposely goes to somewhere to get robbed and if keith stayed with him that would have confirmed his suspicion but because he wasn't there he thought he didnt actually like him but when keith arrived he asked if he remember who robbed him but Yeouwooo lies and saw no but when keith was about to leave yeouwoo hold his hand and keith start behaving affectionately and now yeouwoo is wondering why he's acting like if he likes him.
this past three chapters or so have been so confusing. Like things just keep happening out of nowhere with no explanation