It's an old story. My wife and I were intimate often for the first several years of our marriage. Now, that has fallen off. I've tried to talk to her about it, but reasons for the decrease are all valid - two kids, she's a teacher and works many hours, she gets only five hours of sleep each night and is tired . . .

I am warding off resentment (so far) but I recognize this is causing friction now, and will only increase if we can't find a way to resolve it. Help!