Jon got through the rest of the day somehow. He didn't notice anyone else who was different, but he was preoccupied and he didn't see everyone, even people he knew, every day of school.
He texted Karyn several times during the evening. Apparently, she was having fun, even though she wasn't quite sure about the people she was spending time with. His wish had brought back Karyn's original memories, which meant she didn't remember how any of these people were. Maybe he should have wished she remembered both.
He went to bed uneasy, setting his alarm for 3:50AM...enough time to be ready before time seemed to stop. He wasn't sure what he was going to do. But he couldn't lose Karyn.