Chronic Complainers

I have been married for a while now. Less than a decade, but long enough to know that there are many women, and men, who complain about their spouse just to complain. I find my self in social settings with groups of women who make a comment about their husband and everyone agrees with a "mm-hmm, I know that!" And I have to wonder, do they really? Or are they just being agreeable for the storytellers sake? I never say anything.
My husband works all week and I stay home with the kids. On Saturdays I work an early shift, but I am usually home for the afternoon and evening. While I am away, he gets the kids breakfast and then they clean house for me! It is phenomenal! But when I bring this up to other women they look at me like I have a second head. I can never tell what they are thinking. They either don't believe me or they think I am shirking my duties.
I find this act of helpfulness to be very romantic. It is hard to get away for romantic evenings or even stay awake on school nights! So these "little things" make me feel the warm fuzzies! I make dinner for him every night, home-cooked, not frozen. I bake and do laundry. So why is it that some women give me that look? Why should I feel bad that my husband helps out? Are they jealous? Or do they really think the woman should do it all?