as i said earlier.. below is quoting from (
http://www.inis.gov.ie/en/INIS/Form%20E ... eaflet.pdf )
'Prior to initiation of the divorce, annulment or dissolution proceedings, the marriage or civil partnership lasted at least three years, including one year in the State, and the EU citizen was exercising their EU Treaty Rights in the State at the time that the decree of divorce, annulment or dissolution was made'
In your case she already left the state and initiate divorce outside Ireland, the last letter of revoke which you received, that's really dangerous i didn't saw single person on that forum who received that letter and get succeeded in getting visa.. not sure but to me it looks little trouble for you..