I'll add another Commandment I heard from an attorney: Because 'gone' doesn't really mean gone for a crazy person.I'm an old retired country lawyer. ... "10 Commandments for Dealing with a Borderline Personality and/or a Crazy Person."
11. You need to pay whatever it takes to buy your way out of the mess. Locks, restraining order fees, attorney fees, whatever will buy insulation and finalize the situation.
Force her be crazy all by herself instead of hugging you in a destructive dance. (That phone call about diesel is a perfect example).
Later you will say that was the best money you ever spent - even while you are still paying off attorney fees or whatever.
This will cost far less than what you could get dragged through. It will also return your peace of mind when you know you are isolated and free.