You done did good.
Yeah, what moosie said!
You can also try my personal favorites:
Oh really?
huh....
You may be right
Gosh.
Wow.
I use those a LOT around people who don't have the same understanding of alcoholism, addiction and recovery. I've also been known to use those around my recovery friends too - much to their chagrin.
Just keep your side of the street clean... and realize that you may be the only example of strong recovery she gets to see!
Hugs
cat