I can understand that you are upset and confused. That is only natural in the circumstances. For me, being the COO and working remotely is the red-flag. That

I can understand that you are upset and confused. That is only natural in the circumstances. For me, being the COO and working remotely is the red-flag. That role typically requires being on the ground ASAP. Wouldn't you need a Green Card instead of just a visa? If you are bothered by the decision, you could re-connect and demand more specific answers so that you don't fall into the same circumstances again.