It all started about three years ago. The year after the Chamber of secrets incident. Ginny had just been goofing off in a compartment with Luna. The two girls had been good friends since the end of Ginny's second year. You never saw one without the other.
On this particular day, Draco seemed to be in a foul mood. Why? Well, there just happened to be a teacher in the same compartment as the Dream Team, and he was sure they'd picked that one on purpose. He loved making fun of the mudblood, Potter, and Weasley. But now he couldn't do it because of a teacher. Nothing made him more upset.
It was around the time that the train stopped moving that Draco had decided to make his way to the back and see if the professor was still with the Dream Team. As he was walking by one of the compartment doors opened, and the train gave a lurch. He was thrown to the side as someone was thrown into him. The train gave another lurch and this time he was thrown onto the other person. He then felt the coldness start to sweep over the train.
As the person quickly got up, her red curls bouncing with the sudden movement, they extended their hand towards Draco. He took it and was pulled to his feet. Then he saw the person. Her hair was tossed about from the train lurching and she looked somewhat shocked. She also seemed to be a bit paler then usual, and her freckles stood out even more.
Before Draco could even say her name, Ginny was gone to find Hermione. Draco went in the opposite direction, trying to find Pansy, or someone else to tell him what was going on. He had no clue that Dementors were already on the train and making their way towards him. If he had, he would have followed Ginny.
Little did either of them know, the Dementors helped make a friendship between the two. There was something there that had not been there before. Whatever it was, neither of them would ever know. They would notice the glances shared to each other, the "hi's" that would be exchanged in the hall, and other small things.
So when they got into the same carriage neither complained, but instead, Ginny smiled and Draco gave a polite nod. They both relaxed in their seats, and sat in a comfortable silence. No words were needed to say anything, as there was nothing to really say. They weren't yet friends, but the barrier of insults between then had evaporated. Things seemed somewhat different, in a way neither of them understood. They were both comfortable with it, though.
As Draco got out of the carriage, he helped Ginny down. Why? No one but Draco knows. It may have been to be nice, or maybe not. Draco himself wasn't all that sure even. But it didn't matter. The smile that Ginny gave him was the same smile she gave to her closest friends. And for Draco, that was good enough.