His Libido Sex Drive Has Diminished!

I'm not really sure whats going on. We have been happily married for 15 years, but through these years his Libido sex drive and desire to make love has diminished to almost none. I can't remember our last sexual encounter. He has seen a urologist, who prescribed viagra, however he doesn't want to take it. He is usually too tired. He does work a vigorous job, but even on weekends. Is our marriage over?
More on his libido sex drive has diminished!...
Read more »