Hell hath no fury like a dragon queen scorned and Daenerys Targaryen didn't hold back on her firepower on King's Landing as Game of Thrones took a dark turn. So far, Daenerys has promised her will be a peaceful reign in the Seven Kingdoms when she takes her 'rightful' place on the Iron Throne but that now seems wishful thinking. From the moment Missandei lost her head at Cersei's request, revenge was always going to a dish served hot at the mouth of a Daernerys dragon. And so, despite the surrender, the Mother of Dragons decided the destruction of King's Landing had to happen. The question is why the change of heart?
Fortunately, the show's co-creators David Benioff and DB Weiss have revealed the real reason why Daenerys went rogue in the penultimate episode. It turns out that Dany felt betrayed by all she knows and with only a dragon she could trust, she took to razing all else to the ground. Benioff revealed, "Dany is an incredibly strong person. She's also someone who has had really close friendships and close advisors for her entire run of the show. You look at those people who have been closest to her for such a long time, and almost all of them have either turned on her or died, and she's very much alone. And that's a dangerous thing for someone who's got so much power, to feel that isolated. So, at the very time when she needs guidance and those kind of close friendships and advice the most, everyone's gone."
Benioff went on to explain that Dany also feels Jon Snow has turned his back on her as queen, despite the fact she's in love with him. Benioff said, "Jon Snow is someone that she's fallen in love with, and as far as she's concerned by this point Jon has betrayed her by telling people about his true identity, and also the fact that he's unable to return her affections at this point." Weiss added that Dany has turned to fear and wanted to show her force, no matter what the damage is.
He said, "I think that when she says, ‘Let it be fear' she's resigning herself to the fact that she may have to get things done in a way that isn't pleasant, and she may have to get things done in a way that is horrible to lots of people." Benioff added, "She chose violence. A Targaryen choosing violence is a pretty terrifying thing. And if circumstances had been different, I don't think this side of Dany ever would've come out. If Cersei hadn't betrayed her, if Cersei hadn't executed Missandei, if Jon hadn't told her the truth."
Benioff explained that circumstances had led to the destruction. He continued, "Like, if all of these things had happened in any different way, then I don't think we'd be seeing this side of Daenerys Targaryen."