If your spouse is not a legally authorized party to withdraw funds, the bank has problems.
If this was however a joint account, then you have a problem.
You said that you have a divorce attorney and that he's looking into it. You should trust the judgment of your attorney to investigate this on your behalf. It really doesn't matter to you if the bank compensates you or your wife gives the money back. Chances are, your attorney will get the evidence he needs and the court will order the wife to give the money back.
I know you are very upset. If have a divorce attorney, I would rely on him or her to sort this out. There are rules regarding withdrawal of money and excessive spending during the pendency of a divorce. Your attorney has many tools that he or she can use to get to the bottom of this. Be advised that it might take a little time and some leg work. Be patient.
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