Anime / Manga - Let your mom have some fun with your dad plz

Stuff like this really makes me wonder why her husband hasn't left her yet. Either he's a saint, a masochist, developed Stockholm Syndrome, or is just so dense that he doesn't realize how much of a monster his wife is. All we really know about him is that he's the most normal, sane, and decent person out of the entire cast.

it's called aho-girl.