As a side note, my first wife STILL, to this day, basically "stalks" me. I mean, I can't make a move without her somehow knowing about it. To the point of it being scary. And she lets me know she knows this stuff.
This is 13 years later and she is remarried.
I'm really serious. She knows where I have been, when I come and go, a lot of stuff. Then an email pops up questioning me on it. And really scary is she rarely leaves her house.
I know she purposely made "friends" with various people I have met after the divorce. People she would never met but somehow has.
It's not as bad as it was but for the for 10-11 years it was horrible.
If I thought she was the least bit dangerous, I would file an OP but she's not. Just obsessed.