The evidence for that is all over this thread. She doesn’t exist, and the story does not describe a nun, let alone an ex-nun.
HOGWASH.
The difference in her status and that of being a nun, is, for all meaningful intents and purposes vis a vis the points in her narrative
WHOLESALE NEGLIGIBLE.
. . . except . . . of course . . . from the standpoint of rigid power mongering magicsterical bias.