@Damaged,
While I am sorry for your situation, any answer to your specific question would be simply a wild guess by us and thus would be worthless to you.
In the long run, it matters not what she will or won't do. He has told you that your relationship is over. Move forward and don't look back. (And secretly hope that she stays with her husband, breaks it off with him, and he lives the rest of his life in solitude, pining away for the love you once gave him.)