IIRC, it was left fairly ambiguous, or at least not definitely settled. Carolyn is seen looking at a mirror. She makes a remark about how she wasn't going to wear scarves anymore. She also said something like she didn't know why she was. So point for her not remembering.
At the same time, she takes the scarf off. Julia gasps, "they're gone!" and Carolyn is equally excited. So point for her remembering.
Where that takes us, I don't know.