ColdDeckEd
Member
I think Sansa is acting for LF's benefit there. She loves that Arya is basically a nuke. She is not jealous. She knows Arya and sees a way to play LF like a fiddle. Mark my words: the degree to which Sansa uses/works with Arya will be both an example of her newfound cunning and the strength of the Stark family line.
Probably not a popular hot take, but Sansa's "power" now is politics and manipulation. Though in the Brienne sparring scene, Sansa looks concerned, during the Stark reunion with Bran, Sansa looked a bit like LF in how she was parsing the surprising info she was being presented. She wants to use Arya.
I kinda think the wolves will circle LF and once he is gone that Sansa will try to use Arya as a secret weapon. I 100% don't think she is "above" that.
Sansa has been turned into Diet Cersei.
I don't think she was thinking at that very point how to use Arya, more like wtf has my sister become.