It was most likely a trap. She had to convince herself over and over again to not read more into the two words written on the parchment. Malfoy was getting creative in his efforts to drag her back where she didn't want to go. Overt violence wouldn't get him anywhere. She had been trained in cruelty under an unforgiving master. If she didn't want to do something, no amount of violence on his part was going to change her mind. Truthfully, if she was being perfectly honest with herself, only the fear of being traced by her magic kept her from using her wand on Malfoy. He might have been a good fighter, but she was better.