Agreed, there is perhaps no greater sin than a man's desire to lay down with his wife. This sort of "passion" should be suppressed at all costs lest he be reduced to a filthy animal of the basest kind. Christ's ancient and holy Church has spoken on this matter, despite modern popes "opening the door"  allowing for the possibility of the unitive value of this base desire. We know better of course, outside of procreation married couples should not entertain any thoughts of intimacy or risk eternal damnation of their immortal souls.