Many a couple are resorting to divorce as Sex is literally missing in young couple's lives and normally it is the women who feel neglected. I have observed that wherever there is sexual inadequacy in marriage , the female feels neglected,unloved,insulted and expresses this in a different manner by getting bad tempered and adamant. In few cases I have observed that these women develop extra marital relations.
So mantra of a healthy married life - Make adequate love to your wife