Haha, sometimes it's hard to correct the people you love. I once upon a time used certain words that I just won't use now, and I have friends who still use them. It makes me cringe inwardly now that I have more awareness, but I feel kind of wrong saying anything because of course they've heard me use the same words in the past.
Not that I think your husband takes it that far. He probably just didn't pay much attention to it when you said it because he doesn't consciously think about it, but wouldn't do it himself. Basically, you probably brought all of this into consciousness for him.