I came to USA in 2006 under student visa. Then in 2007 I got married with my husband now who is a US citizen. So my status has changed to 2-year green card in September 2007.
However, our marriage has struggle a hard time. If the worst thing is going to happen (divorce), what will my status be in USA? Would I still stay and continue my school? (I still go to school continuous since I'm married).
Thank you so much for your answer.

If you were already out of status when you entered marriage, after the divorce is final you need to leave US immediately. However, you may apply for student visa or other non-immigrant visa later.