The situation with the Narcissas is different in many ways, not least of which being how much easier it is to separate their realities - to step apart just enough to relate to each other that way. She'll teach her to cook and try to manage her a bit, without interfering too much, and she supposes that's sort of sisterly, isn't it? Bossiness and all...

...but these Malfoy men, that's another story entirely.

"I don't believe there's a Lucius Malfoy in existence I'd consider myself obligated to," she says, lifting her wine glass. "Surely you don't imagine I do anything it doesn't please me to do."

She'd said something very similar to her younger self, quite recently.