Short answer: probably yes.
Unless you or the woman you married did something to terminate the marriage -- even if it was found to be a "green card marriage" and a violation of statute -- the marriage itself was still lawful and exists until someone does something to terminate it. Your other questions cannot be answered based on what you have provided. First, the explanations and materials posted at:
http://willicklawgroup.com/divorce/
http://willicklawgroup.com/annulment/
http://willicklawgroup.com/grounds-and-jurisdiction/
You really need to have a consultation with a qualified family law specialist to go over exactly what happened, what court orders or other documents you have, and what your options are at this point.
Answered on Jan 16th, 2015 at 6:40 PM