LOL - what an interesting question (considering my ex-wife was a serial cheater when I was on business trips 'but honey, you don't understand. I've got this itch and it's just gotta get scratched or else I am going to bust...').
So many guys, of different ethic/heritage groups will tell you no. Mainly because many can't. That 'Baby you just don't understand. Us men, well we got to, ya see, we are just going to burst of we don't, yada yada yada...'
The short answer is -- If a man and a woman care very much about each other, and get married for the right reasons... then yes they can stay sexually faithful to one woman.