Ignore him
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!
There is no such things as an ex-narcissist.
Speaking as a narcissist ex myself, let me detail the feels. 1. My life is over, I'm alone forever 2. Crying 3. Go back to step 1 and repeat until you get over it 4. Back to living
Only if you are masochistic.
You can become narcissistic afterwards, but you will not turn into a true narcissist. Stay away from him and go back to your family and hang around them for a while.
Yes, sometimes a narcissist will contact their ex after a break up because the narcissist cannot imagine their ex with anyone else as the narcissist has a complex of being the greatest at everything including relationships and is ego maniacal.
Yes but do so anonymously.
Probably not, they would fight over mirror time. ;)
By getting a good lawyer. Seriously, that's really the only thing that matters; the fact that YOU THINK your soon-to-be-ex is a narcissist is legally irrelevant.
Tell him to go and leave you alone.