What does it mean when a man says, "being with you is like a waste?

I'm confused because I been a good wife. We have two kids... I clean and cook. The only time I ever get upset is when he make these hurtful comments. I'm the only one that's working right now and I have been there for him. Now he's calling me a waste. It hurts because I been there for him and I also think he doesn't find me attractive anymore. I had two kids back to back and I know I have gained weight. He complains about us not having sex but I have been really tired and plus I have lupus. I feel like shit.

What does it mean when a man says, "being with you is like a waste?
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