Hiccup: "This is where you've been for twenty years? You-you've been rescuing them.... Unbelievable!"
Valka: "You're not upset?"
Hiccup: "What? No! I... I don't know. I... Well, it's a bit much to get my head around, to be frank. It's not every day you find out your mother is some kind of... crazy, feral, vigilante dragon lady."
Valka: "Oh... Well... at least I'm not boring. Right?"