I don't ask for much

I'm a very physical, very affectionate woman. 
My husband knows that and he's known this since before we got married. He was all for it before we said I do. Something changed after we got married. Sex went from 4 times a week, sometimes more than once a day to barely once a week. Affection went from freely given to me having to ask for it and it's always a relectant. I don't understand. I don't get it. Many women ask for shopping sprees and nice material things. I don't care about none of that. All I ask for sometimes is a hug or a kiss or to watch the rainfall through the window. Priceless things. That are always shut down.