Wow, I wonder if she is related to the client that I just had to deal with. The first heated exchange we had was over the phone. She was trying to get me to say something that she could use against me but I kept it on a professional level, didn't raise my voice or name call (as she did).
She felt the need the other day to send me an email asking for her deposit back which I had already mailed to her. She sent me a long drawn out email basically berating me. She was my client for 2 years and the whole time I had to walk on eggshells. I'll be glad never to have to deal with her again! Oh yeah, and of course she had to threaten with calling licensing which she has yet to do because she knows there is nothing she has to report. I have 2 years of communication books that I have recorded everything.
So I would also say just to keep it on a professional level even if she tries to take it to a personal level. Keep strong and if she keeps harrassing you, call the police.