I've been married for 20 years. Sex with my husband has always been bad. He has never been able to turn me on. There were no passion, no desire on my part and it always hurt. I've tried explaining to him that women are different from men, that it takes us longer to get excited, but he thinks he is so good in bed and he doesn't need my advice. Finally I gave up, but now I'm thinking, maybe, I should divorce him.