Man, I don't think what Jaime did is necessarily out of character he's completely sick in the head when it comes to Cersei and is so wrapped up in the idea of the significance and purity of their relationship, that I could see him failing to even grasp the idea that she could not want him but from a meta perspective of what it does to the narrative, it's awful. I mean, first off there are a significant number if viewers who will just never forgive rape, and regardless of what the director or Nikolaj says, that was rape. Say what you will about how pushing Bran out the window was worse, this is just going to hit some people harder. And now this is just going to loom over everything in Cersei and Jaime's relationship. When he finds out about how unfaithful she's been, it's no longer a loyal man being betrayed, it's a rapist slut-shaming his victim. When he burns Cersei's letter, it's not longer breaking off a toxic relationship, it's a rapist discarding his victim. It completely changes the power dynamic in their relationship from one where he is the victim of her constant manipulation and is always dragged down by her, to one where, no matter what she does, we always know that Jaime can ultimately seize power if he wants it.
I kind of hope that the scene was filmed more closely to the books and then made rapier in the editing room, just so that I don't have to reeeeeaaally worry about those comments from the director saying this was consensual by the end.
Rest of the episode was excellent though.