You think you know so many things. [What kind of a person she is, how much faith she deserves... Jon Snow comparison goes here. Her tone is dismissive, not cruel: it's not a jab at his education or intelligence, but rather a complaint about his stubbornness.]
I'd prefer for you to disregard anything I agreeed to... earlier. ["When I was a child". A honourable queen owns up to what she's said and done even as a child, she imagines, but she's just not enough of a good, honest person for that. Mostly it's in response to the reminder about his name, but she's sure him seeing her like that didn't help his thinking he knows anything about her (that she hypocritically thinks she knows him is neither here nor there).]