"Sure, Ben and Emma still need to have that play date after all." He would force himself to act natural, and sooner or later it would be natural. Even if it killed him.
"I won't, I promise. Have a good night," he said. He didn't turn as Seamus left, didn't want to look at Seamus had have him see how torn up he was over this.
He heard the door shut behind Seamus, and rested his head against the window, welcoming the cool glass against heated skin. He had to go get Ben, had to go back to Hogwarts and get on with his work. But it wouldn't hurt to just stand here. Just for awhile.