Note: This question does NOT ask/address if you would actually go through with cheating (many wouldn't).
Most Helpful Guy
Snooping wouldn't even make me consider cheating. In fact all a woman would have to do is ask to go through my phone, and computer and I would let her. I don't do anything that is worth hiding except when it comes to trying to surprise her.
However if she kept accusing me of cheating and starting fights about it, I would start to think that I might as well cheat, at least then I would deserve being yelled at. My last ex was real bad about accusing me of stuff I didn't do, and sometimes I thought about cheating, but I never actually wanted to cheat. I think that line of thinking was more about being angry and just thinking dark thoughts about hurting her back for all the stress she was putting me through.