This is entitled stuff by your WW. In her eyes in is her right to claim half.
I would ask though are your accounts and Fins safe? The Giggalo pulled all sorts of tricks after he left, nothing, nothing surprises me about those with entitlement.
The D phase with an entitled spouse is really tough. Stay calm, if you get angry please let that be white anger so it is with direction.
Frankly I would ask for the cash she took and if you ever owe her any cash then ensure you get it back by deduction.
I wish you peace and calm, I know that you are level headed and think carefully before you act so I am sure you will act with kin dress to yourself.
Breathe dear heart
V
Freedom is just another word for nothing left to loose. V 64, WAW