Madisgram is ABSOLUTELY right! I think your Sponsor needs to go thru the Steps again, and re-read the book of AA. She's got her thinking ALL WRONG. At this point in her recovery, she should NOT be a sponsor -- that's just MY opinion.
I made the mistake too of divulging something at the tables at a meeting and it got out on the "streets" and back to my family -- and caused some hurt. I never IMAGINED that people there would talk behind my back about serious issues such as that! But I was new and my sponsor hadn't told me yet about that kind of thing.

I was hurt and angry -- and I confronted the people at the tables as a group and told them what I thought!!!

I never made that mistake again. LOL
You don't have to divulge anything you don't want to.
God bless and please take care. Hugs, Lee