Hermione was not expecting Harry to outshine her in Potions, and she certainly was not expecting an unlikely friendship to form between her and Draco Malfoy because of it. (Alternate HBP leading to DH)

Draco and Hermione find themselves in a very unfortunate situation, one where they'll be forced to trust one another with their deepest secrets. Because how does a relationship between enemies change when they have full access to each other's mind? When they discover each other's darkest secrets? And how will they be able to use it as their advantage?

I hated you. I resented you. I feared you. I wanted you. You were what I couldn't have, and a Malfoy always wants what he can't have. But once I had you, it was then that I loved you.