Dear Xiaobaitu or other Experts: I485 -- Spouse Interview?

Dear Xiaobaitu or other Experts:

My hu*****and is EB3 and I485 pending in NameCheck for more than 2years now. He is the primary I485 EB3 applicant in TSC and I'm the derivative(spouse) I485.

Yesterday, I received a letter says my case was transfered to the NBC in Missouri and there will be interview scheduled soon. But my hu*****and did not get any letter. Does this mean they are going to interview me about my marriage?? Is this close to GC approval or not??

Thanks a lot!!!