[She seems quite unfazed by his intimidation, simply looking up to meet his face as he moves closer.] If you really don't want anyone to know anything about you, you're going about it all wrong. Before stepping into a castle filled with hundreds of people, you should have figured out exactly who you were going to be while you were here. [Yep. She'll turn this into a learning experience. Seems the best way to diffuse it. And she thinks he needs to learn a thing or two before acting like he's so special and interesting. Like no one else keeps secrets.]

Then it would have been wise to decide which pieces of information you were not going to share, no matter what, and do two things: convince yourself that the information is false, or doesn't exist, so there's no possible way you would bring it up; then, desensitize yourself to mentions of anything regarding it. Or else, like now, you're just giving yourself away. And I know your weak point and can further exploit it whenever I deem necessary.

Also, know who's important and who's not. That should be your first priority: knowing who to manipulate. Or, like now, I will say: Sir Gar told you that? I don't even know who that is, but they obviously doesn't know how it really works around here. Your business is our business. We don't want the liability of wild cards.