@KathyMTM No, up until now they had a clear division of labor; at home vs not-at-home. She decided to be not-at-home, so YES, now HE has to do (some of) HER work so SHE can also be not-at-home. There’s nothing “sexist” about it, that’s just the way it was/is.
But the point remains, why aren’t her folks picking up the slack? Has ever been any mention of them paying rent?