I know that my husband loves me a lot but lately I been concerned id he is sexually attracted to me. When we first got together we had sex for hours when we did have sex. Now after being married, he does it for like 5 minutes and he's done for the night. On occasion I try to get him excited so we can do it a second time and he gets mad at me and accuses me of being a nympho. He isn't hard half the time we are doing it. And he blames it on me and says that I'm not trying or some lame excuse. What are some other clues he isn't sexually attracted? We are in our 20's so and I know he doesn't need viagra.