How does the author use foreshadowing in Wench: A Novel?

It isn't made clear why Drayle chose to teach Lizzie how to read, nor why the first word he taught her was "she", which is a very empowering word. "She" is a pronoun connoting a woman standing on her own, which directly contrasts to Lizzie's position in the novel. One hopes that these education lessons will be foreshadowing for Lizzie's eventual break from Drayle's control.