Monday felt different.

It wasn’t just that the weekend had gone too quickly, or that the grey sky outside the classroom windows looked heavy enough to spill rain at any second. It was that Daisy kept catching herself wondering what Jordan was doing — even in moments when she should have been focusing on something else.

By the second period, she realized she was looking for him without meaning to. He wasn’t in the art room yet when she arrived. She sat down, telling herself she didn’t care. But then the door opened, and there he was — sketchbook in one hand, hood of his sweatshirt half-pulled up.

He didn’t...