回複：謝謝，那在我臨時綠卡到期前90天

You must jointly file before divorce as per Yates memo, and if you don't by the expiration date, you become illegal, and currently no protected status for you (see point 29) But after divorce, you may get permanent LPR in court.

http://www.uscis.gov/files/nativedocuments/AILA_2Apr08.pdf