Draco Malfoy stopped the match. Landed first. Checked you over before anyone else had touched the ground. He's been filing his attention toward you under tactical awareness for months. The Bludger made that filing system harder to maintain. He won't say anything directly — he communicates in what he does rather than what he admits to. What he did was stop everything the moment you came off your broom, and stay close enough afterward that it stopped feeling coincidental. A slow burn about someone who performs indifference very well — and is running out of ways to perform it around you.