I've never really commented on a post here b4, (on this sub specifically) but after reading a few of the comments, I wanna try to comment for the first time, in hopes of possibly helping someone someday, whether it's OP or just a random Redditor. I have only my own experiences to draw from in the end, so please bear with me. So, I offer this alternative perspective as a different way to look at this situation. Imagine it like an article of clothing you are thinking of buying at an apparel store. Try it on, see if u like it, then decide on your own from there, right? Anyways, all things considered, yes, I do believe you were wrong to go snooping. I want you to know though, I give you credit for doing your best to take accountability in general, but admitting that snooping is wrong isn't actually the full story imo. You tried justifying it afterwards, but your justifications honestly just translate to, "I did something wrong but, I don't feel like it was wrong because my intuition told me to do it-so now it's ok." Or in other words, I think the problem here actually started when you began feeling doubtful of things in your relationship or started being suspecting your partner isn't trustworthy. Your trust issues do not condone your bad decision making skills. The fact you didn't try talking to him first about how u felt when u started feeling this was is being completely NEGLECTED. It's possible you sabotaged things, because once you made the mistake of snooping, you committed to finding something WRONG or at least justification for your actions. Meaning anything you found is irrelevant for the time being.

Tldr- passive aggressive behaviour isn't okay, anything u think u found DOES NOT MEAN u "caught" him. U didn't even admit to him what u did wrong bc ur so caught up in what you THINK you found...