With Draco, it was different. It was something she hadn't quite figured out yet. Maybe when she was alone and scared running from the husband she thought was abusive, she latched on to Draco and she didn't know how to let him go. Her theory about there being some sort of spell or charm attached to him that made her unable to think clearly seemed to make more sense. Perhaps she hadn't fully explored that enough to make a definitive answer. Even her thoughts were contradictory around him.