1. The second motion is to know whether there is any change in decision of either of the spouse and now the wife wants handsome amount in return for her signature.
2. The mutual consent divorce stands on mutually agreeing to separate, after resolving many issues like return of articles, division of finances and assets, alimony, sharing of costs, etc..
3. As per your narration, 'she was the one who ran from the relation and filed the divorce'. If this were to be the case, you could have petitioned the court against her for Restitution of Conjugal Rights and thereby you would have got a firm ground to contest the case, if she had not returned to her matrimonial home.
4. Since now she is denying to sign and asking for handsome amount to close the issue and since you have chosen divorce through MCD, better to settle the same taking into consideration your financial position and if you are serious to part with her in marital life.