You don't know when it was, how long it lasted, to what extent, even what she meant. She could rescind it at any point, and has already claimed to have recognised those desires as an issue and taken steps to get over them.
You don't have any evidence. You have one (1) dubious DM and a bunch of fantasies and headcanon. You don't have to like her for her behaviour, but this is a nothingburger and it's going to continue to be a nothingburger until that changes