He watched the skinny fifth year leave for her dorm, when he decided to go to his own. He gathered his parchment and books, and started up the boys stairs, his mind locked on the same thing he always thought of these days. It wasn't by will, of course, since he wouldn't think of girls if he could.
Remus pushed the door to his dormitory open, and walked across the room to settle on his bed, taking a deep breath and letting it out slowly as he closed his eyes.
"And why are you here when your redhead isn't?" he said after a moment, his words directed at the figure in the bed opposite his.