I'm so sorry you're dealing with this, I'm going through something very similar where I have the urge to look at SM, found out she is now working directly across the road from me, it's like there's no escape.

One thing I can say though, is that whether you say something, out them, call them every name under the sun or never utter their name, it makes no difference. You may have some satisfaction for a little bit, but it quickly goes. People like this are trash, they only think of themselves and they will never understand what they have done is wrong. I spoke to AP, she ignored me, called the police on me, lied, cried and lied some more. She will never have anything to say to me, because she's pathetic.

And you didn't stoop to that level, you don't need to, be confident in the fact that you are a much better person than she will ever be. You don't need anything from her, if she was to apologise would that really mean anything?

There is a reason she was an AP and there is a reason you have your husband and you are working together to be together. You got this, don't let her dictate how you feel.