F2 should be out of USA

I don't know if you got the divorce decree or not. if you got it, from the legal point, your guys have no relationship again, then F2 should go back China. this is why many couples just wait for a while to get a divorce to give the time for F2 to transfer status. I also wonder F2 cares his/her staying in USA or not. She/he should think over this thing before get the final decree. maybe she/he just wants to go back China (I know one couple is this situation that she came back to work in old Daiwei after visting USA and divorce). I guess even after divorce, there is a grace time for F2 to leave USA.