Remus kept looking up, expecting to see him looking over. But he didn't. He tried several times to the point where the others may have noticed. But Severus had his back to him. That was unlikely.

He waited until after class, telling his friends he had to ask Slughorn a question about the classes he missed. It was a lie of course.

He stopped Severus by the elbow and gave him a smile. "You alright, mate?"