@Chizan this chapter he's still perving on her with the comment of how she's small. if he was just talking about her height he wouldn't have needed to add "in many ways." having read the raws it does continue to head that way, though it is rare for manga to have genuinely decent ml anyway so this is more of a rant about the ml than anything.
if he was acting out of her best interests and not just his feelings for her he wouldn't have been so quick to say that she should leave school (without regard for her desires) and that he'll him take care of her for the rest of her life even though her 13 and 18 year old self are different so him still trying to lock her down with him and getting jealous then separating her from the teacher abduction style is gross to me. I have a frustration with the trend of pushy older guy being touchy with younger/smaller body type expressionless girl thing that I've been seeing so im clearly in the wrong place anyway.