Honestly this guy's bro-crush on Hiroshi seems like it'll be a huge catalyst for what happens to Kanae in the future. Kanae is improving a lot and even Hiroshi seems to be gaining a healthier outlook on life. Against alll odds, their relationship is actually going very well. This massive disruption is not going to be good for anyone.
Hes in the right ngl, all she thinks about is love and her social status in school/social media, like get a job or hobby. The dude she likes is actually doing something in his life and she's only just gonna bring him down.