[ She is hurt twice: by the swift, unerring way Sansa doesn't smile, and by the words that mirror her own situation so completely. There is a time for confession, and speaking freely, but she doesn't want to draw attention to her own plight when Sansa is so clearly troubled. ]

That is a possibility. The certainty is that they will find others in their path to you, unwilling to see you harmed without just cause. Besides, it is a fool who brings such prejudice here, and seeks to draw steel when we have only one true foe.