i dont think he all actually confess his feelings, i mean, kazuya seems to be the person who d do those sorta things in a private place ,like , who even confesses "i like you" in a restaurant? and kazuya, he d def do it at some other place, i think he ll just say that yeah, you are my ideal girlfriend ,but i dont hv feelings fr you and gulp it down, he wont confess , partly due to chizuru's job and partly due to his inferiority complex , but ,if he does want to be selfish , then he might as well say it ,although i just dont see it happening .
Well,since chizuru got over her grandma's death, i think its fine confessing ,it'd be a diff thing if had thought abt it when she was sick/had passed away
P.S- i hope we dont get interrupted by mami or ruka ,sumi is hardly gonna appear and yaemori would be recording it