1. Your lawyer doesn't seem to have idea about mutual divorce.
2.For Mutual divorce there is no need to stay for a single day/might with each other.
3. If you reject any attempt of reconciliation of court the court is bound to grant you decree of divorce.
4.There is no need to make the court understand the reasons behind your mutual divorce.
5. So engage a new lawyer and file the petition for the same .
All the best.