Did anyone else REALLY hate Hisao in Rin’s route?

I can't really speak on Hisao in the other routes, because I have not played them in full, but when I was playing Rin's route, I just wanted to jumo through the screen and smack some sense into him. It never made sense to me how he fell in love with someone he actively disliked being around for the most part. He repeatedly talks about how frustrating she is to be around, and does nothing to prevent her almost destroying herself. He treats her like a puzzle to be solved for most of the route, but then just becomes content with not being able to provide the understanding she needs. It just doesn't click to me how he could be viewed as likable (in rin's route specifically).