I was always snooping through his stuff looking for things, it's as if I wanted to catch him out. Although when I did I was always furious. If I'd been more laid back about things and let him do what he wanted, maybe his thoughts of going out with his friends and flirting etc would not have been so desirable.
Stacey, I was pretty much the opposite of what you describe. I never snooped, he went out and on trips with his guy friends any time he wanted. I never questioned his business dinners or travels. I never expressed jealousy, I trusted him completely. It didn't make any difference.
I'm not saying either of our approaches is the correct one, but I am saying don't beat yourself up over it.