Hannah’s suspicious, cynical side allows her to figure out who’s taking her notes. She finds she can put her energy into working out this mystery, but once she’s solved it, Zach deprives her of an explanation—so even when she tries to stand up for herself, she feels ridiculed and powerless. Meanwhile, even when he’s been caught in the act, Zach doesn’t explain himself or apologize. He seems to feel entitled to Hannah’s property and feelings.