Hey guys i need some advise on my situation, I was married to a USC and filed for a green card based on marriage, during the interview, i found out she lied about being married to the Texas health department, so she could get food stamps. The interviewer said we need to go clarify all that first or it could make our interview very difficult. We had a big fight because i found out about some other fraud she was involved with. I decided i wanted to return to Europe and she agreed to withdraw my petition. The interviewer wanted us to fax her a withdrawal letter if we decided to go that route. The letter was faxed back in Jan and i have not heard back from them. What happens if i just leave the country?