I don't think this is an exclusively male or female problem. In todays society men and women are really leveling out in terms of employment and salary. I actually read somewhere that on average women are earning more than their male counterparts these days, due to higher college graduation rates. I also read more men are taking on the role of the caretaker of the house and kids while their wives are the sole breadwinners.

I don't know your SO, but I would imagine he looks at it like "She can't take a day to go to work while I hang around the house, why should I take a day to cook while she's been hanging around the house all day while I'm at work?" I'm not saying I agree with that, just that it is one way he could be looking at things.

Relationships take a good amount of compromise on both sides. Whether that compromise is taking time to have a meal ready when your partner gets home, or accepting the fact that there's nothing made and just fixing yourself a sandwich. I don't think it's your job to fix him dinner everyday, but after a hard days work it would probably be nice to come home to it. One hand washes the other, you know?