Domestic violence often starts with an argument and in the heat of the moment turns into a complicated criminal law issue with very serious criminal law penalties. In your case as well as all cases under VIRGINIA CRIMINAL LAW, the complaining witness has no ability to drop the charges. These determinations lie mainly with the local Office of the Commonwealth's Attorney which is charged with prosecuting all such crimes within the jurisdictional area for which it is responsible. Your best option is to lobby the Office of the Commonwealth's Attorney.
Do you have to testify against your husband? If you have critical information and you are subpoenaed to testify by the Court under penalty of law you could suffer contempt of court charges and penalties. However, in your case, there is a chance that you could invoke your 5th Amendment Rights not to incriminate yourself since you may have acted in a manner that was illegal when the fight with your husband occurred. Also if you truey do not remember what happened, then there is no way to testify about what you do not remember.
We advise you contact a criminal attorney to discuss your ability to invoke the 5th Amendment.