1. These notarized affidavits which spouses execute, as a purported instrument of dissolution of marriage, do not have any legal character. A marriage can be dissolved only by the court.
2. Your wife continues to be your wife for all legal and practical reasons as the marriage has not been dissolved by the court and she has committed the offence of bigamy by remarrying without obtaining divorce.
3. You cannot remarry unless divorce has been granted by the court, so if she does not agree to mutual divorce then you are free to unilaterally file for divorce on the ground of remarriage of your wife.