I am trustworthy, and the first time some guy in my life was checking on what I chatted about, or checked my phone, or anything like spying, I would boot his sorry ass. It's sick, and from what I read, the chat stuff wasn't even a big deal. So you violated her privacy by reading it, then violated it even more by posting the actual stuff on here. Hate to think of the creepy spying stuff you did that you didn't mention on here. Obsessively check her phone? Follow her? Check her panties when she came home?
Seriously, OP you need to get a grip on yourself before you try it again. No on you have in your life is going to avoid talking to other people because you might freak out and assume the worst. It's a self esteem issue, in addition to lack of self control and respect for boundaries, and it makes you sound NUTS.