I also love the way he's telling her a story here... and that gorgeous moment "help me, I'm in pain", "that was you!" - you can really hear it playing out and the undertone of affection and playfulness is very clear. He's babying her - it's tinged with meanness, as everything he does is, but it's sincere too. He's entertaining her, playing Daddy. It's beautiful. And it's beautiful because it's this lovely little caring moment that's also really ugly and horrible because of everything it means and is leading to.