I've been fired and have had to fire someone in AA. It isn't easy especially when you see them the next few times. But, your sobriety is about YOU, not them or me or anyone else. If something isn't working for you, you need to get it out of your life. Period.
Soooo sorry you are dealing with this. It sounds massively uncomfortable. Good luck and please keep us informed about what is happening. I'll be praying for you and for your sponsor.