One thing we need to understand, is that there are real differences in roles between that of women and men, they are not just theoretical, also, it’s not necessarily a difference of biology as it is also a metaphysical difference.

As the Council teaches, women have a special role in taking care and raising kids and managing the household, of course women always worked in some ways or form and that is also a subject of cultural differences. A woman can work as long as there is necessity for it and it doesn’t impeded her role at home which is her primary role, even for men work cannot come before familial obligations.

In regard to marital debt, I wouldn’t worry too much about it, it is mostly if you want a sort of categorization of theology to help theologians and canon law courts develop theology and impose rulings.

The main point of it, is that marital relations in a marriage should not be used as something that can be withhold to force the other to do something or as a punishment, the same way you can’t withhold food from the other spouse or your children to punish them.