A Game of Thrones, Sansa is seen as this naive girl that can be maneuvered and used. A Clash of Kings she experiences and understands what it is to be a piece (like the etiquette of being said piece tbqh) and how to deal with it. A Storm of Swords is where she finally recognizes her own potential of playing the game and takes a leap in that direction. A Feast for Crows she is Littlefinger’s trainee. That’s how I see Sansa’s evolvement through out the series. By AFfC she’s able to look at Littlefinger as partner to dance with but not to marry, you know? I think before she’d rather avoid dancing all together and remain as small and unthreatening as possible (or to possibly dance and be used and play the puppet to perfection).
I think she’s getting tired of everyone’s shit.