"Snooping" is very addictive and it keeps your focus 100% on your wayward wife which isn't going to do you any favors. As much as it [censored] your best bet is to turn your attention elsewhere and stop looking for evidence.

She's going to "do her thing" no matter what you do, say, or feel about it. She doesn't need your permission or your blessing, which is a difficult thing to get your head around in the context of a relationship that used to be a partnership. It's not anymore, and the old rules don't apply.

Keep doing what you're doing. You have 0.0% chance to make this better while she is under the spell of another man. All you can do is last resort technique and ride it out. It will eventually end and at that point if you're still interested you can start to make inroads but for now it's a waiting game.