Attorneys are prohibited from entering into business relationships in which the attorney, by virtue of his/her profession, receive or appear to receive confidential information about the opposing party. No attorney can ever represent both sides in a divorce, even if it is an uncontested divorce.
Once you have interviewed with a divorce attorney, that attorney is ethically barred from representing your spouse. Even if you don't hire the attorney. It would be a considered a conflict of interest sense, during your interview you gave the attorney confidential information about your side of the divorce case.