Harry was bothered. Not by anything in particular, but by everything at the same time. He had the kind of restless feeling that came from knowing that something was very wrong and that he was not actually able to do anything about it. There was nothing Harry hated more than feeling helpless about a situation. On top of that, he hadn't seen Ron and Hermione all day and any plans to talk to them about the DA and come up with a plan of action were thwarted.
Generally annoyed with the world, and knowing that he would take it out on anyone in the vicinity if he didn't get the hell out of the Gryffindor common room, Harry picked up his broom and headed outside to try and fly off some of his nervous energy. At the edge of the pitch, the grip on his broom handle tightened as Harry approached and consequently scowled at the bench. Malfoy's hair was recognizable anywhere, even in near dark. He could practically hear Hermione's voice in his head telling him to leave it alone, but the opportunity to annoy the other boy would probably make Harry himself feel better and so he did it.
Stopping behind his head, Harry stared downwards. "They don't even want you in Slytherin anymore? Taken to sleeping outside Malfoy?"