Ex Parte (not Ex Party) means without the presence of all parties. It is possible but highly unlikely that your husband asked for the case to be withdrawn. There is a BIG difference between withdrawn and dismissed. In any event all this is irrelevant in light of my suggestion to get the Order/Judgment.
To get the Order of dismissal, it is important that you DO NOT approach any advocate. First, you do not need one. Second, he will only complicate things. All you need to do is to find out from that Court where the counter is to pay and receive certified copies. They will ask you to fill a form or file an application. Most likely there will be pre-printed applications available where you fill in the details of the case and what you want. Otherwise, you can make such an application yourself by providing all the details of your case. If you err, the clerk there who accepts the application will correct you. Pay fees for urgent processing. Pay the clerk some "tip" to get it done really fast. Tell him that you would like to pay for urgent copying, for example!!!
This is the information that you should ask (not just the Order of Dismissal):
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The entire docket. I think it is called Roznama which lists everything that happened in the case, with an entry for each date that the case was heard. This will give you a clear picture if things were done behind your back.
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All filings made by your husband. You most certainly should ask for these documents.
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All Orders or Judgments issued in the case.
Hope this helps. As you can guess, I am NOT an advocate but any good advocate will or rather should give you the same advice.