Look, I love my wife, I love her and my family more than anything. But all this "Never, never in a million years, she is my sun and moon and stars" shit is bs. If you don't cheat, a huge part of that reason is that you consciously avoid situations that may lead to cheating. But relationships go through ebbs and flows, everyone can be tempted, everyone can fuck up. Now I can understand saying you would never want to, and I agree with that, but taking it much further beyond that doesn't seem very realistic to me.
Let me repeat this just for you, since you're telling me it's bullshit: I will NEVER cheat on my wife. Not because she's my sun and moon and stars, but because I promised her I wouldn't, and that's something I consider binding.
Is this because I'm going to avoid situations that may lead to cheating? Absolutely. I'm going to consciously avoid the situations because I chose to be married. It's really that simple. If someone's having such a miserable time with their spouse that they need to turn elsewhere, it's very simple, in my eyes, anyway -- either work to fix the marriage, or end the marriage and sleep with whoever the hell you please. I don't see any room for middle ground here unless it's agreed upon by both parties in some kind of open relationship thing (which I can't really imagine doing, but that's just my situation, not necessarily anyone else's).
I got caught leading two women on when I was young. They knew each other but didn't know that I was trying to be with both of them at the same time. They found out, it was extremely uncomfortable for everyone, they became friends and I became alone faster than I could say "oh shi-". The thing is, I was 16? at the time. I can forgive a 16-year-old for trying to test the waters, because I remember how stupid I was, and I had to learn my lesson. When I see a 26-year-old or a 36-year-old or whatever do the same thing, I have no pity whatsoever. They generally know exactly what they're doing, and if they squirm when they're caught... well, no shit, Sherlock. What did you think was going to happen?
If this sounds sanctimonious and preachy, okay, fine, I get that. But when someone says that resolving not to cheat on your spouse is unrealistic, I think that's equally so. If we can't control our impulses, we might as well head back to the caves.