when you think about it, everything that has happen to Kaneki is all her fault. I mean, she was the one who drove her younger sister to work to death because of her "Money troubles" and all of her sister's built-up frustrations and Ken's abuse was because of her. When Ken's mother died, she was indifferent and cruel to Ken because of her egocentric delusion that he "looked down on her" the same way she saw her sister who loved her very much.
If it wasn't for her, Kaneki's mother would still be alive, Ken wouldn't have become a ghoul, and every ordeal that had happened to him wouldn't have existed.
Honestly, If Kaneki ever regained his old personality and his sanity, i want to see him return to his aunts' house and confront her, reprimending her for every hell she had put him and his mother through while toying with her, throwing her around against every wall and making her suffer as her family watches.