However – there was one part of the interaction that has me very worried. It's no secret that Sansa and Jon don't exactly see eye to eye (and not just in a physical sense). Jon returns to Winterfell expecting Arya to back him up against Sansa, as she always did in the past.
However, thanks to the rather fraught journey the Stark sisters went on in Season 7, they've finally come to respect one another. From Arya's conversation with Jon, it seems like she's definitely Team Sansa.
Arya's comment at the end of the scene about Jon not forgetting he's Sansa's family – that he's a Stark – is particularly ominous. Almost threatening.
There's also a moment earlier in the episode, when Arya first sees Jon riding alongside Dany. She's immediately happy and emotional – but when he rides past without glancing her way, her face drops.
If Jon continues to side with Dany while Sansa is against her – especially if and when his true parentage is revealed – could the Stark sisters perceive it as him turning his back on the family?