Most men view porn. Google it. You'll find some studies that show that 56% of men view porn, while other studies show that 100% of men view porn. Whatever the percentage is, the fact is that most men view porn. It is not something rare.
Husbands who use pornography are NOT most likely to cheat if given a chance. If this were true, then most men would cheat. And we know that's not happening.
Men use porn because it makes no demands on them.
The women in the videos or magazines are always available, day or night, at any time, and they never have headaches or their period, and they're never, ever tired from taking care of a baby or children, and they don't get distracted, and they always always say yes and they don't give the man a disease and they never get pregnant.
No demands. It's a man's dream to be able to do what he wants to do, when he wants to do it, with no one to nag at him and tell him that he shouldn't do it, or that he should be doing something else like cleaning the garage or mulching the shrubs or painting the bathroom.
Men hate feeling trapped or nagged. They want to be free, wild, unfettered.
Cheating on a wife means being with another woman who will eventually make demands of him, and that's what men are trying to avoid by viewing porn. They want demand-free sexual stimulation/gratification.
For this reason, I think that husbands who use pornography are not likely to cheat, but they ARE likely to resist cleaning out the garage or mulching the shrubs or painting the basement!
A wise wife finds ways to give her hubby the feeling of freedom; e.g., encouraging him to go hunting with his pals, or hosting the weekly football game, or not nagging him to sell his teenaged sports car and get a sensible van.