Remarriage

Hello sir, i agreed to pay X amount to my ex-wife so that she would withdraw all cases and file mutual divorce. After the mutual divorce was over, i came to know she basically fooled me saying she was in dire straits and needed the money but instead got married to her lover within days of signing the agreement and filing the mutual divorce. Can i take any counter action to recover the X amount as she remarried while mutual divorce suit was pending. Paying such a huge alimony had almost made us broke.