I'm not so sure about this guy. I mean, I don't have a problem with him as of right now, but usually when guys pop up like this, he's not exactly the type he portrays himself as. That, and the fact that she was hiding around the corner with a face of discontent. Can't truly say anything since he has very little appearances so far, but based on some evidence shown in this chapter, it's possible it won't be good.
After finding out why exactly she was acting like a bad parent some amount of chapters ago; because of the fact that she hates herself so much that she can't help getting pissed off at her own daughter even when she did nothing wrong, I didn't find her as a shitty character.
Probably would be a safe bet to not lean either direction until more is known about him. Similar to how Mai got in a bad situation, except that guy was so suspicious it made my skin crawl.