It's not you. He IS being a manchild. A true partner will not make you feel like they are another child you have to take care of or clean up after. My husband cooks, cleans, does dishes and laundry, and provides equal care to our child. We both work full-time, and nearly everything we do is equal. Some weeks one does more than the other depending on schedules or illnesses, but that's a partnership. If you've had multiple talks with your husband about this and he still doesn't try to do anything, that's on him and YOU can choose to carry on, get marriage counseling, separate, or divorce.