This paradox really does get frustrating each time I see it.
These male characters are so timid to the point they can't hold someone's hand or anything similar. But then they always freak out about stuff like staying in the same room, acting like all of sudden they will turn into chad rapist? Like this dude is not doing anything to this girl even if she was begging him, so why act all crazy and act like I can't stay in the same room. Or what? What would he actually do? Nothing.
Also this is a work where the MC is seemingly the normal one, and the girl is kind of hikkimori, so shouldn't he better at reading the situation. He knows she has a massive complex, but he constantly tells her stuff or phrases stuff in a way that will only worsen the situation. Like dude tell her you don't want to share the bath because you find her cute or something, don't just run away as a spaz.