You're making a very big mistake assuming that you know anything at all about me. [ A bluff, and probably a bad one at that. He's seen it in her eyes, what she knows of him now. She's surely seen it reflected back in his eyes, too. That he's aware she's caught a glimpse of the darkness in him. She only knows a part of it, though, and he only knows a part of it when it comes to her in return. ]

Maybe not today, but soon, I hope, you'll tell me what it is I'm meant to keep you from doing. [ Again, he knows what she's implying. The total destruction, desolation, to which she's referring. But he wants more of it in her own words. Specifics. ] You see things, certainly, but I'm very sure that what you think you know is all very, very wrong. I am going to help you, one way or another. And I do mean, help you. Not harm you. Not ever. And if anything else is trying to harm you, it'll answer to me.

[ Whether or not she believes that doesn't entirely matter at the moment. He doesn't need her to believe it for it to be true. ]