I strongly suggest you get your own bank account and stop depending on the joint account to pay bills. You and your kids are eating hotdogs while he has 3 grand in his pocket. He cannot be trusted he's proven that open up an account of your own and talk that over with your attorney, don't let him bully this situation to his advantage. His charm towards you is his manipulation don't fall for it he is using that to his own advantage for what ever reasons. Cut all the ties that bond you and him now financialy.