Because Maryland
and Virginia have a reciprocity
agreement, you only pay state tax to the State you *live* in. You should file a MD 502 Resident Tax Return.
The only reason you need to file a Virginia return is if your spouse's Virginia Employer withheld Virginia income taxes from their pay. If this is the case, you will need to file a Form 763-S Virginia Special Nonresident Claim For Individual Income
Tax Withheld in order to receive that withholding back as a
refund.
If this doesn't apply to you, please comment below.