Don't want to get your hopes down, but this happened recently and I had a friend get so excited she called long distance.
What they're doing in the instance of XPervert is taking the A underground publicly and making new "secret" pages. They even defriended each other and some friends of mine got very excited...well, the same week he told me he got a house with the person, so my gut wasn't wrong.
One thing that was hard at first but really helped me was to not even go to the site anymore. I don't want to be "connected" to things they do or chance spying on me and I feel much better for it. It became a very anxious thing for me and I was constantly looking after them...now I'm free of it, though they are in my mind during times of high stress or lack of sleep.
I hope it's really all done for your sake, but people do all kinds of sneaky things with those SNs. (social networks), I'm sorry to say.
You gave me nothing and now it's all I've got - Bono
A person is a person, no matter how small. -Dr. Suess
Perserverance and spirit have done wonders in all ages.