(Fear. She never had love in Westeros - only fear. And she had utilized that emotion, turning herself into a monster.)

Why did they fear you? (She understands why Westeros feared her. Her father left a horrible legacy.) I was feared too. I was never given a chance to be seen as myself.

(His bitterness makes her think that he might understand that - and his words cement her thoughts.)

What is wrong with being a monster? You mustn't hide your true nature.