Frustrating people assume their freshman year that Ren and Nora are dating. There is even the really uncomfortable moment when the teacher monitoring first period study hall asks Ren if "he's seen his girlfriend around," since today is the second time that week Nora is out of school.
We're not dating," Ren says, and decides against telling where Nora is. She's sick with a minor cold that made her voice scratchy over the phone when she called him. He had thought (it turns out wrongly) that at least a teacher, an adult, wouldn't make the same gross assumptions as another student.