It certainly seems out of Stark character, but why did she ask for Brienne's sword? Is she going to give him a shave since he's gotten all scruffy? Is next episode just going to start with her being like "ha, jk, here's your sword back, whatever I intended to do was totally out of character for a Stark. Sorry for going off script there writers, let's just pretend the whole "Brienne, your sword!" thing never happened."?