Just a couple of points for clarification:
Generally speaking, you are deemed to be "working in" whatever country you are physically located in while doing whatever work it is you do. Where or how you are paid or where your customers or registration is have no bearing on where you are working for legal and tax purposes.
Then, on the B2 visa, it's normally limited to no more than 6 months in any 1 year period. I know of people who have run into difficulties on re-entry if they are doing a strict 6 months in, 6 months out routine (based on a border official's evaluation that they have spent more than half their time in the US during an 18 month period - makes no real sense, but the border people have considerable discretion in the moment).
I suppose the first thing to do is to confirm whether or not your B2 visa has been revoked. If it has, that may make things a bit harder for obtaining a new visa, but hey, you'll never know until you try/ask the question.