Unfortunately, there is not. A cause of great grief to me, even more so that they try to sell it as a surrogate mother role. More maternalzoning. -_-
But it doesn’t play like that in the interactions we see, the way Grace treats Dani, there’s loyalty and protectiveness and even reverence, but it doesn’t ever seem like that kind of familial love? I dunno. You can go either way, I think.