I dated someone once who would sneak onto my email (she claimed I left it open one day and she went through my emails that way, but looking back on it I think she installed a key logger on my computer) and go through my phone while I was sleeping.

I found out about the email snooping because she confronted me one day about nude pictures I had in an email from another woman. I was really pissed, not because she "caught me", but because if she had bothered to look at the date of the email she would have seen the pictures were sent to me 2 years before her and I had even met. I honestly had completely forgotten the pictures were in my saved emails, I think I just saved the emails when I first got the pics and forgotten all about them. So not only did she violate my privacy by going through my emails (and she must have been really snooping because I had a lot of saved emails for her to find this one email in the supposed few minutes I had left my computer with my emails open like she claimed), but she also violated the privacy of this woman who clearly did not want other people seeing those pics. I hadn't even spoken to this other woman in over 4 years at this point. I deleted the email immediately after this conversation.

But like an idiot I forgave her after she promised to never do it again.

The way I found out about her going through my phone was because for weeks it seemed like when I woke up my phone was in a slightly different position but I didn't think much of it. One night though I put the phone in a particular spot and turned it in a particular way and made a mental image of it before going to sleep, when I woke up sure enough it wasn't in the same spot or position. This was before smart phones so there wasn't a way to lock the phone, at least not this particular phone.

I left her a few weeks after that. I had enough of my privacy being violated at every turn.

She completely destroyed my ability to trust someone ever again. I don't let anyone use my computer unless I am standing over their shoulder, I have my computer password protected and I logoff if I am going to be away from my computer for more than a couple of minutes. First thing I did when I got a phone that you could lock was password protect it and I have always password protected my phones since and use a code I don't use for anything else and don't tell anyone what the code is, if I unlock my phone I make sure no one can see what my code is when I unlock it.

Every time I have dated someone one of the first things I have told them is my trust issues because of someone I used to date and tell them if I ever catch them snooping through my computer or phone or anything else private then we're done. Seems like a weird thing to tell someone so early on in dating but I figure might as well put all the cards on the table now instead of waiting until we get more serious then be like "Yeah you can't go through my shit."