Every time she brings up mom said, he should say very politely that he doesn't want to hear about mom, he only cares about her and her life and what she is up to. If she continues to talk about mom, he can just change the convo..
"So how do YOU feel about that" "So how are YOU doing today?" "So how was YOUR shopping trip/school day/date/whatever"
Its classical conditioning and it works, trust me I use it on my own kids. Just flat out do not respond to "mom said" and instead ask a question directly pertaining to the daughter. Ask her what she thinks, says, reads, saw, did, watched, ect ect ect ect.
DG has spoken.
PS: If your friend would have just said this instead of the posts he made, I wouldn't be so fracking annoyed with him.
Do cylon skinjobs crossdress?