I would be upset too.. And the whole thing about "this relationship is on you" Thats a bunch of bull. A relationship takes TWO people. He needs to do his part too. I would find it really strange that first he's not telling you that someone sent him inappropriate pictures, secondly, he didn't want you to go to work with him... What does he have to hide?? If there was nothing to hide, then he wouldn't have to keep you from work or anything else for that matter. So, no. You weren't wrong for going through his things.. He doesn't give you a reason to trust him, so thats all the reason more to go through his things.