I disagree.
o/p is going through a shit time with a small baby.
her dh should be doing everything he can to support her and help her through it. If that means encouraging baby groups and picking up all the housework while she focuses on herself and baby so be it. He’s an adult man, unlikely he’s working long days down the mines. He can come home and cook dinner for his struggling wife.
it’s a phase. It won’t be forever, and once she’s recovered they can split things more fairly.
if he insists she drop her groups and stop doing the things that are helping her recover then it may end up getting worse, and then the cupboard tops definitely aren’t getting cleaned.
again, compare it will any other illness. Broken leg, d&v bug, migraine. Does a loving partner tell there wife to rest up and get better, or do they start berating them because the cupboards aren’t cleaned and dinner isn’t cooked to their satisfaction?
if o/p was fit and healthy, and choosing to neglect housework for long lunches
and spa days, he may have a point. But she’s ill. She needs help to get better.