It was an open instance of softness for a character who's had to learn to be fierce and imperious, and who's accepted that in order to take back the Iron Throne she'll always been fundamentally aloof and alone -- as she tells the faithful Jorah Mormont (Iain Glen), the dragons are "the only children I will ever have." To see her take pleasure in the husband and child she misses, at least for a magical instant, was heartbreaking and played well be Clarke, who's become very good at portraying strength while allowing it to be clear that the character has a lot still to learn and more mistakes to make.
Even poor Theon Greyjoy (Alfie Allen), who in trying to win back the love of his father took over a castle he couldn't hold, had his moment of misguided humanity (Theon is really nothing but human weakness). Listening to the siege outside, with no place to run and no way to defend Winterfell against the outside number, Theon took counsel from Maester Luwin (Donald Sumpter), who knew the boy for most of his life. The talk with the Maester was a careful one -- the man obvious had his own agenda -- but it was sweet as well, Luwin offering him the best out he could come up with, even though it was one Theon ultimately turned down.
Even Brienne of Tarth (Gwendoline Christie) had her moment of softness, insisting on burying the dead girls she finds lynched on the road, though it put both her and her prisoner Jaime (Nikolaj Coster-Waldau) in danger. And Robb (Richard Madden) proved himself the (perhaps foolish) romantic, marrying Lady Talisa (Oona Chaplin) in private instead of the daughter of Lord Frey to whom he was strategically promised. It felt telling that the season came to a close not at the end of the battle, but instead after spending time on these windows into vulnerability, glimpses of actions that aren't the wisest and are more telling because of that. They were welcome examples of softness in a fictional world that seems to prove itself ever crueler, and even then they came with their own foreshadowing sense of approaching doom.