"He-Who-Must-Not-Be-Named is a horrible, evil man, who lives to torture…"
"You-Know-Who adored killing and other bloody pastimes. He was a big fan of Grindelwald, the other bad wizard before you were born…"
"He was an orphan, and a wizard at that. Hogwarts was his home…"
"I almost feel sorry for the monster. I mean, everyone hated him, and so he was cast out, before he learned to be such a manipulative bastard…"
Her mother told her horror stories when she was young. She'd shiver, a gross excitement coming over her at being scared. And then Harry learned all about him, so many years later, and she just couldn't help but be enchanted by the thought of the poor, young boy, a boy who needed help, who turned into such a power-hungry moron.
She knew, oh Merlin she knew, that this went above and beyond her usual 'odd' standards. This went well into the range of absolute madness, and she knew it. But she couldn't help it. She was seduced by such an idea, seduced again by the fear that sent shivers down her spine.
And then she saw those red eyes, and her whole fantasy world changed.