[Luke let's her go, one arm reaching up to her shoulder to provide what stability he can. He's not much taller, in truth.]

I...know you don't. I don't think anyone save Palpatine is to blame, mother.

[That man. That walking nightmare of a man.]

It's not something you could have noticed. He fooled everyone. Not just you. The entire Jedi Council, the Republic, the whole galaxy. No, it's nothing you should feel guilty about.