Wow its unbelievable, there is someone else in the world just like me..
I will have to tell my husband this..lol I am the vary same way. I can dream about it. but when it comes to doing it, id rather do the dishes!..but seriously with me I think it is something physiological. stemming from our past. we have been together 20 years, and Im now 39. But I never had a high sex drive anyway. and when we started dating that is all he wanted to do, and I really got tired of it, and he even broke up with me a few times over it. and that made me feel like that all he had me around for. and then we got married and he cheated, which of course I was told was my fault, because I wasn't taking care of his needs enough. But we survived all that and he grew up, this went on in our early 20"s. and now that we are in our 30"s almost 40's (sigh) he is a completely different person. and I still have next to no sex drive. and I am convinced that in the back of my mind what it boils down to is resentment. because we did split up again for a few months last year, (over money and normal stuff this time) but about 2 weeks after he left. My sex drive decided to show up.( ya I know, perfect timing right,
) but that told me that it was not a medical problem at least. and guess what. Yup you guessed it, when we got back together it went away again. So maybe in your situation it could be something in your subconscious that you don't even relies.