I arrived in the country in 07' on a student visa. graduated in 2011. Applied for work-based OPT after graduation , but it was denied due to late submission, & so i fell out of status. I've known my USC girlfriend since 09'. We tied the knot in 2012, after my OPT was denied. We applied for a green card & had our interview june 2013. The interviewing officer did not like the fact that we lived with a friend and paid no rent. He said he would do some follow-up. On oct 25th, 2013 i received a phone call on my way to work from a field agent. He said he was in the lobby of our apt building. I told him i was on my way to work, & asked if i needed to return, but he said no. He asked when last my wife & i were together & other questions abt her. What do we do now ? we are very worried. Pls advise!