It's nice that you are feeling well!
I have been in your position before.
You have to remember that she will find a new replacement for her replacement, if her behaviors are truly borderline. This could hurt you more, but since you have already gone through it before it will probably be less painful.
Thanks Valet, but I doubt id be hurt when she gets the next replacement, She is borderline, bipolar, adhd, and some other issues, I am doing what i need to do to no longer attract that kind of people in my life. I wouldn't call this a hurt anymore but nostalgia. I no longer have those big emotional response and tend to think of that r/s in a positive way. It was fun while it lasted, the r/l didnt last very long and I had it easier than most of you here.
That a good attitude. It helped me to get passed the extreme sadness that I felt, definitely.
Make sure not to demonize her and devalue her like she devalued you. She deserves compassion just like you.
Remember forgiveness is the only way to freedom. We cannot escape the love-hate continuum without it.