Wow. I am impressed. There’s a couple of grammar errors that I caught, but a lot more that was brilliant.

She sighed, hands tucked inside her robe pockets, and began to think about him, like did almost all the time now.
I think you left out a “she”, between like and did.

“I’m a prefect, Parkinson. It is my job to check that things stay in order. And I would advice you to cut back on the threats.”
In this context, you want “advise.”

He stopped walking, and she felt his gaze still on her. She wanted to wrap her arms around him, to shake some sense into him. She wanted to yell, to scream, to cry, to let him know just how much he was hurting her for doing ‘what was safest’. She wanted to hurt him back, to make him feel the way she did, but she couldn’t summon the strength. She was weak, beaten. Everything was gone, now.
This is just one excerpt that I thought is really, really good. The way you work the mood in is terrific. Ginny, though not like we’ve seen her, is believable, and so is Draco. Fantastic job – I’m going to read the rest of your stuff now!

I agree but it was really good...I could really feel her emotion. Well done!

Yeaa, too bad its a one shot.. I`d like to see them get together haha. I think it was good.