i agree with the above said view, file a complaint against the lawyer, i am sure there is some misunderstanding that if the 1 year period of separation was not there, then your petition could have not been accepted at any cost. but even if we consider it also, you can march back in that court along with the certified copy of the petition and the order, when the matters are done, you can request the judge to hear you out and show her that u have been wronged. she just might restore the petition on your request. (its worth a try)
and if your wife is not willing for divorce then you cant get divorce through mutual agreement in any case. therefore, you will have to fight a contested divorce.