Virginia does not allow part-year residents to file a joint state return unless BOTH of you are Virginia residents.
Virginia says:
You may use Filing Status 2 (Married, filing a Joint Return) if you are married and (1) you filed a joint federal return; (2) both you and your spouse are Virginia residents, or (3) neither you nor your spouse was required to file a federal return.
If you and your spouse filed a joint federal return, but only one of you is a Virginia resident, the resident must use Filing Status 3 (Married, Filing a Separate Return).
Refer to Part-Year Residents.
You will have to create a “mock” state return to file separately. TurboTax is not set up to create a joint federal and separate state returns.
See: How do I prepare a joint federal return and separate state returns?
