Isobel couldn't help but roll her eyes. Everyone assumed that Isobel had it in for Elena. Her attitude while she had been in Mystic Falls hadn't helped that, of course, but she cared for her daughter more than anyone would know. That was why she had to push her away, just like caring for Ric was why she had to push him away. "Elena and I have an understanding," she told him, not elaborating on that understanding.
"And as for Katherine," she said pointedly, "she was over here last night telling me that she didn't want anything to happen to Elena. I don't think that plotting with her is going to be an issue, but we are still friends."