Getting even with a BPD? Best way for me to do that was to just move on and become healthy in my relationships with more normalized women. I know my former BPD had stalker like (but more just what's he up to, not slash tire like) tendencies. So with that I just saw new women, and since their car's were parked in my driveway overnight I thought that was good enough. I found with time she moved on to easier marks, and I was happier with that. While anger may drive you to want revenge it's really not worth it, and literally any energy you waste on it is just that. Waste.
BPD's.....really are like MRSA. Takes awhile to rid yourself, but now you know.
So take if from the others on here that have faced that kind of infection. Rid yourself of it via absence, and do not feed her anything whatsoever.
KC