No, I don't think I would ever get to the point where I would want to bring it up, honestly. She might get really defensive.

I guess she has her reasons for lying; maybe she is delusional, maybe she was traumatized and unconsciously created an alternate past to cope; who knows, maybe she suffered a TBI at some point and her memories were erased (it's a stretch, I know).

She is just too sweet and nice to deliberately and maliciously lie.

(^ Eh ... maybe I am the delusional one.)