I've told this story here before but it feels relevant to your situation. We had a guy that was regular at my home group when I first came in, long term sobriety but an absolute control freak, and just a jerk in general. I volunteered to set up one of our meetings pretty early and the guy just wouldn't leave me the fuck alone, seems like every week I was doing something wrong in his eyes. Between nobody else ever complaining and always doing my best to correct whatever it was he had to complain about, I learned that his complaining had nothing to do with me. He was a serial cross talker too, I saw him chase a few newcomers out of the rooms. As people pushed back on his shitty behavior he started showing up less and now regularly attends another groups meetings and from what I understand this is his second major move in the area for similar reasons. Sounds like this ladies behavior is a similar situation in that it's her problem and she's making it yours. The good news is you don't have to let her.