Thank you for your patience.
At this point, what someone in your situation may wish to do is to file for an official name change to get to whatever name one wants. See HERE and HERE for steps, forms, and directions.
It may be best for someone in your situation not to be specific about how one's name came about. The Judge may or may not question the past situation. If they find out that someone in your situation faked the name, they may deny the name change. Some Judges may simply approve it without asking. Also what was done was arguably a crime, but the statute of limitations has run so it is unlikely that there would be any criminal charges.
So the name would then be changed, hopefully. However, the marriage certificate - that is permanent as is. FINALLY, there are questions about validity of the marriage as well due to a fake name, so again, it is best to be vague in the petition if one wants to attempt this.
Using counsel is recommended.
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