My senses tell me that the boyfriend is an asshole in disguise. Yah ive read too much mangas w/ those tropes (plus irl experiences) so I no longer expect sweet girls to have decent boyfriends.
@hancea1996 Actually he's quite nice (if just a bit dumb).
He had his own series which served as a prequel to this one where the girl worked as a verbally abusive maid to him, so it's actually the girl who has more of a problem than the guy.