Like everyone else said, approach with caution. I really hope he isn't trying to play a rude joke, because that would be just cruel. Maybe talk to him and see if he says sorry for anything.
Sometimes guys show their affection in weird ways. In 6th grade, this boy used to chase me around and kick my shins. My friends always had to chase him off and kick him back! Turned out he had a 2 year crush on me Looking back, I see it now. But back then I thought he hated me!
Shiloh, Reece, Lolly, Skylar
and fosters Snickers, Missy, Magic, Merlin, Maya