Am I the only one who can't trust that male teacher?

Omg, same! Haha but it's because when Kanon joined the club, I thought she had a crush on him. So every time he appears, I get uneasy

I swear in some panels he looks creepy/untrustworthy but then again they're showing that he's a good father mourning his dead wife, idk I'm conflicted
Anyway I'd like him to stay away from kano..