Draco froze for a split second, before continuing mildly, "Oh?" he had gotten over his knee-jerk aversion to being involved with Potter, but they still had never actually worked together. The most they’d interacted was over coffee in the staff room or queuing up in the canteen. And Potter was fine - he really was! He was polite and mildly friendly, and if anything, he was significantly more willing to talk to Draco than anyone else in the Department. Falling into a surprisingly positive working relationship had been easy - but Draco did worry that stretching the bounds of that relationship would end in some kind of explosion - emotional or otherwise.