That's it basically.
Back in Dec when stbXh and I separated I started a thread on here in an old NN.
It was full of details I would never dream of sharing in RL. That's why I chose an anonymous forum to off-load it all.
Turns out she knows I come on here so she had a good look around on the off-chance I'd talked about it. She found my thread and her and my father had a good read.
Apparently I have no right to be upset as it's only because they love me and because I'm "so private".
My reply was that yes I am a very private person and I'm perfectly entitled to be. As an adult I feel that should be respected. We've never been particularly close (have had a couple threads about various issues) but seriously? This is ok?
I feel so violated, it's just a complete breach of trust IMO. Worse is that they didn't say anything for 8 bloody months, looked me in the eye and acted totally innocent.
Initially I was literally shaking with anger, now I'm just sort of resigned. Fuck all I can do about it now anyway.
Yes I know that the internet is never completely safe but it just never occurred to me that she would actively look. Just a total invasion of privacy. To me it's like finding out someone keeps a diary and going to look for it.
I'm just pissed off that there is no one in the fucking world that doesn't lie to you. 
So AIBU? Genuinely interested in any other perspectives because to me it's just inexcusable.