Harry Potter and the reappearance of Harry's stalking tendencies

Back for eighth year, everyone wants to go back to normal; the war took too much out of all of them.
Malfoy's not eating, and he's barely talking. He knows he deserves it.
Harry's stalking him again, and, no, Hermione, it's not because I'm in love with him, what are you saying?
It's just because he's worried about the git.
After it goes on for too long, he confronts him about it.