I have a friend in the program who loves - LOVES - to tell me that it's not my business. He actually has a story of someone he was working with years ago who had 2 months and then went to a meeting (after he had fired my friend as his sponsor) where no one knew him and picked up a two YEAR medallion! He was shocked. My friend talked to his sponsor about it and she just said "that's his business, not yours"

I guess I would say that the only person your friend is hurting is HERSELF. It's between her, her HP, and her sponsor if she is lying about her sobriety.

If you want to be there for her, go. If not, don't. But try not to let her sobriety or lack thereof get to you. We have enough to deal with worrying about our OWN sobriety, you know?