Galen moved over to the seat next to her and wrapped one arm around her, giving her a half hug. "You have nothing to be sorry for, Ahsoka. Nothing. When you knew him, Anakin Skywalker was a good man." He leaned his head down so he could lock eyes with her. "You have to accept that it wasn't your fault. That there was nothing you could have done. If you don't, it will eat you from the inside out. If you're lucky it will leave you wrecked, if you're not..." He paused, then took another tack. "You need to let it all out, Ahsoka. Emotions themselves don't lead to the Dark Side, but being overwhelmed by them will. If you let yourself get eaten alive by guilt, it will destroy you just as surely as being overwhelmed by rage or hate."
He knew she'd likely heard that it wasn't her fault, but he was going to keep saying it until she believed it. "No one blames you. I don't blame you. The Council wouldn't have blamed you. Even they couldn't see it until it was too late, how could anyone expect you to see it?"