Say it ain't snow! This traumatizing theory predicts the Battle of Winterfell and defeating the Night King are just red herrings for the real conflict: a battle of the heart. George R.R. Martin has given us a major clue, saying, “The only thing worth writing about is the human heart in conflict with itself.” The quote is from William Faulkner, and GRRM has expressed agreement with it in the past, meaning he’s of the mind-set that the great battle of the series isn’t about life and death…it’s about love.
We’ve already seen evidence of discord between Jon and Dany in the first two episodes and the fifth episode of season eight: Arya and Sansa are wary of the dragon queen, and Arya tells Jon never to forget he’s a Stark. Sam Tarly now has reason to be against Dany after she breaks the news about his father and brother to him. And the audience is left with a feeling of dread now that she's gone crazy and burned down all of King's Landing. The fallout will force Jon and Daenerys to pick sides, especially since Jon’s view of power and the just way to wield it is in such opposition to Daenerys.
Just as much is predicted via a prophecy from the books, which means it’s almost guaranteed to come true. The Azor Ahai theory about the Prince That Was Promised spells out doom for the Prince’s lover. In the prophecy, the original Azor Ahai had to stab his wife, Nissa Nissa, through the heart in order to create the sword Lightbringer.
Pass the tissues, please.