I don't know, there is possibility somebody (Thaddeus) used her to incriminate MC... and she is torn by guilt... Just another crazy theory.
Honestly for Primrose, even though she is falling for the MC, I think there is assloads going on in her story line.
First, I think that it's not really a personality trait so much for her "Trance like actions". If you remember you grabbed the spell book from under the old Truthsayer. I'm under the impression that he's used the spell on Primrose, for what ever reason, before the MC came into the picture.
Her big secret could be, that her father and Truthsayer were using poor Primrose or father got Truesayer to let him use her.
If you remember, you molest your sister at night, and play with her pussy. When you go to finger her, it stops almost upon entering her pussy, where you make the comment that she would definitely notice her Hymen being broke in the morning, so you stop.
When you molest Primrose, she doesn't have the same issue. Which leads me to believe that her big secret is that she is aware that either the Truethsayer or her father has taken her virginity, or maybe both have used her.
Her darkest secret, is she was the one,(when she realized and read some of the book) to be the one to poison the Truthsayer. Maybe with the intent of breaking the spell. She's a smart girl, and who's to say she couldn't learn to read the book herself. At least to the point of understanding it. She is awfully interested in magic stories, that she turns the MC onto. Also the fact when your into the MC mind dream, she says something to that fact, before the crone interrupts.
I also think that she maybe able to read the ancient writings and spells, and will play an important role for the MC's advancement. Without the use of the crone, most likely to work on the crone's own mind control later as well.
So finding the spell for Callie, or a spell for Belle (whether shrink for you, or growth for belle) or even the unlock spell. May depend on her knowledge, rather than the crone teaching, as she seams to be reluctant to do.
So there's seems to be more to her than what's on the surface......I love this game and I thank
@Belle for creating such a fantastic story and adventure.........................Peace!!