Intimacy. Somewhere in a marriage there is a subtle change in the intimacy department. One person has an off day, there is a misunderstanding or someone doesn't feel well ... and then he isn't as romantic or she isn't as sexual.
Whoever is the one with the subtle change can trigger a downward spiral in the intimacy department. Men generally need sexual receptivity to feel romantic and women generally need romance to be sexual receptive. As long as both people are getting what they need, they willingly provide what the other person wants.
However, when there is a lessening on either's part, that can trigger a pulling back in the other. If gone unnoticed and unchecked, before the couple realizes, they are seriously intimately estranged and wonder what happened. This can lead to divorce as couples begin to feel unloved and unappreciated.
