If A Wife Deserts Her Husband Marriage Will Not Be Nullified
Question

                What is the iddah period of a woman who deserts her husband? Is the marriage 
nullified, or must the husband pronounce the divorce, or does a kuli' go into 
effect?
Praise be to Allah.; 
If a woman deserts her husband, the marriage contract will not be nullified. It remains valid until 
the husband divorces the wife, the wife gets a divorce (khul), or the Qaadi (judge ruling 
according to Islamic shariah) annuls the marriage contract.
Allaah knows best.