Because my emotions fuel my powers and I need to keep a tight control of them so that they won't... control me. [A pause.] They're a weakness to me, a way for my father to get me to become the demon he needs to fulfill his plans.

[There's a longer pause before she turns to face Harry with a small genuine smile.] At least that's what I thought. Until I met you. Now I know there are some emotions who don't need to be suppressed and can help me become a better person. [She knows she'd never have turned into White Raven if it hadn't been for Harry's love and his sorrow when he thought he'd lost her.]