This answer will differ depending on who you ask. People have varying sex drives that are affected by everything from one's energy and stress levels to other responsibilities in our lives, including work, chores, and children. We've all heard stories where one person in the relationship wants sex much more frequently than the other, causing an imbalance that eventually incites feelings of resentment in the former. How often a couple has sex depends largely on where it is put on their priority list. I think those who make a concerted effort to have sex, say, once or twice a week, can carve out a few minutes weekly to do so. But sometimes life gets in the way of even the most carefully laid-out plans, and couples have no choice but to leave it for another day. I think sex isn't the most important facet of a marriage or relationship. After all, as we get older, our relationship or marriage becomes less about passionate sex and more about companionship. Still, sex mat...