I would give Miss Nosey Worried About Covering Her Own Ass this response –
I have talked with my attorney who advised me not to make any statements to anyone regarding my ex husband as this is an ongoing investigation that I am not a part of. If you need to make a statement to any concerned parents about ME then I would suggest you consult the schools attorney on that matter who can then consult with my attorney – it’s really not in our hands.
And if you need to, do consult an attorney - you may have a lawwuit on your hands if she pushes you further or fires you.