Praise be to Allah.
We put this question to Shaykh ‘Abd-Allaah ibn Jibreen, may Allaah preserve him, who answered as follows:
She should ask for an annulment of the marriage in the city where she has moved to, on the grounds that her husband is absent and is not sending her any money to live on. This annulment will take the place of a divorce. And Allaah knows best.