You can divorce and file based on good faith marriage ending in divorce.
The above is intended only as general information, and does not constitute legal advice. You must speak with an attorney to discuss your individual case.
Talk to a lawyer ... if you filed a joint I-751 ... she could make problems.
PROFESSOR OF IMMIGRATION LAW for over 10 years -- This blog posting is offered for informational purposes only. It does not constitute an attorney-client relationship.
If you filed the I-751 jointly but separate while the petition is pending, you cannot pursue the joint petition and must obtain a final divorce for a waiver of the joint filing requirement.