text: Guys need to keep the romance up.  Once you are married, it's like the game's over and all the chasing and passion and romance fall away to the real world.  Keep the passion alive like when they were dating.  Also, I heard on the radio this morning that it's frequently because women feel unattractive, so men need to let their wives know they are still hot and that they still desire their wives and it's not just something they want to do and get over with.  Oh and obviously it has to be passionate, and something the woman will enjoy.  If it's just going to be fast and routine with no foreplay, any woman would rather pass.