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My family and I came to the states for a family vacation (with ESTA/tourist visa). My American citizen boyfriend of 3 years spent some time with us. After 86 days together, he asked me to marry him because he couldn't bare to separate from me. We are now married. How do we go on from here? What steps do we take? What forms do we need to submit? Will we be denied?
 
My ESTA visa is about to expire in 3 days, will that be a problem with the process?

My fiancee and I are currently going through the K-1 process. I was advised that NVC just sent my paperwork to Vietnam on June 23, 2018. I already booked a trip to Vietnam for my our engagement party on July 11 before our interview inquiry. Our marriage celebration will be on October. We will be filing the marriage license in the U.S. if her interview goes well.
 
Our concern is that what if my fiancee fails the interview and the i-129f was completely thrown out AFTER our marriage celebration? We plan to file for cr1 if that happens but would it look bad for our case because we had a marriage celebration while still going through the k-1 process or would it not be a problem as long as we don't file the marriage license until my fiancee is in the US?
 
When filing the i-129f, we signed the promise that my fiancee and I would get married within 90 days upon arriving in the US.