I was not at the interview, so I don't know exactly what CO asked, so I can't help you there. But I'm pretty sure my fiance did not conceal anything or mislead. At the time of filing, I had been living in China for 3 years. I know she brought copies of my employment contract, which expired about a month after her interview date. Every year it is uncertain whether the contract will be renewed. In any case, we definitely DO intend to marry and live in the US soon, but we might spend 1-2 more years in China before that happens. But I will also say that I gave my fiance plenty of evidence of US domicile, e.g. several bank accounts, investment accounts, etc. I am actually employed by a US university, too, so my paychecks go directly into a US bank. I also gave my most recent US tax return for 2020. I think all of this makes it clear that I have significant ties to the US and plan to return.