Ding Jiayi was truly hurt, even though she had already subconsciously known that Qiao Zijin had such a view of her mother.
It was just that Ding Jiayi had treated it as though she was overthinking it since Qiao Zijin had not explicitly expressed it. Although Qiao Zijin had not clearly said that out loud, the meaning was not dissimilar. She had devoted herself to taking care of Qiao Zijin, but Qiao Zijin treated her no different from a free servant.
