Well, I don't know that making you dinner or listening while you babbled on are necessarily signs that a woman is submissive, these things are just indicate normal civility to me, I mean listening while men babble on is something most women do, for a lot of the time. I listened to men babbling on a good deal when I was young, but I think it was just politeness more than submissiveness. I still listen to my husband babbling on quite a lot, mostly about his latest engineering project. I mean, your girlfriend may have been submissive, or she may just have been civil.
I personally found that indicating to men that I wanted to be spanked came quite easily, they usually gave me an opening of some kind. My second long-term boyfriend was the first person I ever raised this matter with, and I forget now how it came to pass, but I think we had one of those "If you don't behave yourself I'll spank you" "Well, why don't you?" sort of exchanges, which I had on subsequent occasions with other men, including my present husband. At any rate, he caught on pretty quickly. We had quite a fulfilling sexual relationship, though he wasn't particularly dominant otherwise, but then at that time in my life I wasn't aware that I wanted it to extend beyond sexual dominance. I think that would be a much more difficult thing to indicate if you didn't know the man extremely well already, it took me 22 years to get around to mentioning it to my husband.
And every prince has got a bit of frog in him, you have to take the frog along with the prince. As Dr. Pat Allen observes, if you wait for Mr Perfect you'll wait a long time. Look for someone who's more frog than prince, but don't expect 100% prince, because you won't get him.