I think us fellas once in a relationship find it hard to be romantic after a while, I dont know why i suppose its because once you are married etc you get in a bit of a rutt and are content with what you have. When you are younger an in the market for a women you do all the things that you think you have to do to get one, ie flowers, gold, romantic dinners and the like. But once you have the attentions of the women you desire it tends to slip a bit. The chase is better than the kill, sort of thing.
As for women they seem to always be looking for those little tokens of love and affection rig