I bet a lot of the people in her AA group know that she's been drinking, probably a greater amount than you think! I mean think about it, who is best going to be able to spot an active alcoholic? People who are [recovering] alcoholics themselves. Don't let her compulsive, lying, addict behavior ruin your day!
Also welcome to the ACoA section
. Feel free to share more when you're ready! You'll find lots of support here.