If you dont have children with him apply the NO CONTACT rule. If you have to be in contact because of the children, using praising, admiration and compliments from a strong point of view, this will help u achieve the temporary outcome u desire, they are very gullable. You can get them to do anything you want by throwing nuggets of admiration.
Your best strategy is to show him that HE has no merit in your life. Stay calm and appear unaffected. Let your attorney handle the legal responses and just stick to the facts. N's are so arrogant, they think a judge will recognize their superior intellect and side with them. Don't even refer to him by name, he's just a respondent or petitioner. It will make him furious to be considered so "ordinary" and will enforce to the judge that you need relief from this man. Take friends with you to court, not to testify but for emotional support. If he can't get a reaction out of you, you are of no use to him and he'll leave you alone. DON'T FALL APART! You can do this!
Get as far away from them as possible and never look back.
You are saying narcissist ex. If he is your ex he is not cheating on you and why would you care if he is your ex. Forget about this and move on with your life. If you think that this is cheating on you - better think again and also know that this will go on and on.
Hell no unless you want to go through the pain all over again!
Do some web searches on Narcissism - read all the traits & stories. You will find it easy to come to your own conclusions.
If your husband's ex-wife is crazy, it may be best to keep your distance. Your husband should deal with her or cut off all contact if there is not a reason for communication.
Tell him - its her or you.
Ignore them.
Restraining order, sue, press charges
Ignore him
Be grateful they do not remember you
talk to her in a nice way about how u feel
There is no such things as an ex-narcissist.
Either use duct tape or cut contact. The narcissist will not change his/her ways.