Unfortunately, there is most likely nothing that you can do at this point, unless you can prove he lied on a financial affidavit. However, it doesn't sound like he failed to disclose any accounts or hid any assets, only failed to disclose his personal behavior. While it does sound as if he dissipated marital assets during the marriage, that wouldn't be grounds to "re-open" the matter. That should have been dealt with at the Final Judgment hearing.
Wish I could be more helpful!
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