I don't think snooping is all that evil considering the situation you're in. I mean,, if you have the stomach to handle what you know you'll find out it can help you stay out of a kind of fantasy land some can fall into, thinking everything is alright if they don't actually see it.
I think that kind of prospective is important in that this is an unreal situation, totally crazy, and acting like everything is hunky dory, in my opinion, just feeds the monster.

Think if the tables were turned. you are the one cheating. Do you really think your wife wouldn't snoop? wouldnt raise hell?
This is a war of sorts with new battles waged everyday. The ebb and flow, the rise and fall of moods, emotions and feelings. Knowing what the other side is up to seems only prudent to me...providing you can take what you know you will find out.

This is Paul Harvey saying....GOODDAY!