My first reaction is to tell you I think he's doing you a favor by saying he doesn't love you anymore because he sounds like a jerk who doesn't deserve someone like you.
However, you obviously want your M to work or you wouldn't be here, and I don't mean to be so judgmental.
Were the words not stated "In sickness and in health" during your ceremony? Telling you that he "didn't sign up to take care of you like this" is cruel.
You are not a doormat. And you are not wrong for thinking that your family should be helping you with the household.
I am very sorry that you are going through this and that you are hurting.
"Everyone you meet has baggage. Find someone who loves you enough to help you unpack." ¤Formerly DelinquentGurl¤