You need to make sure you have not yet overstayed 180 days (COUNT THE DAYS) from the expiration of your I-94. You will need to go outside the US ANYWAY since you are not eligible to adjust status within the US through any means other than through marriage to the original petitioner. However, as long as you have no overstayed by more than 180 days, if you depart now, you will be able to return with a visa to get married to the new person. If you have overstayed by more than 180 days, you will be barred from reentry for 3 years as soon as you depart the US. If you want 1 year, you will be barred from reentry for 10 years.
Answered on Nov 30th, 2011 at 4:48 PM