Which I've decided to be fine with. Healing of Albion and all that; it's not just a pun. They turn slowly around, faces meeting in the light. The Doctor looks into her eyes, and leans gently in, and presses his lips to hers. The third kiss. The light pours out of her, and into him, and she falls into his arms. He sets her down quite carefully and faces the doors of the TARDIS, full of light. Retentio. And he sends it back. Restoration of the divine, the release of light from the gross material world. Leaving us back where we were, because if the Earth is Hell, in these Ahriman tales, well, the mere presence of grace means it's Heaven, too. Rose will still be there, still looking like a big blue box. The TARDIS doors close quietly, and the Doctor smiles softly to himself, kneeling to stroke Rose's face with infinite tenderness.
Jack stands. He staggers through the open doorway onto Floor 500, where he investigates a pile of Dalek dust. He hears the "vworp," and runs for the TARDIS as fast as he can, but he's too late, arriving just in time to watch it disappear. And the look on his face, I'm telling you. It's not fear, it's not being stranded, it's not anything but love. And being left behind. If Rose was joy, he is sorrow. It's a powerful moment. Now, you and I know that it's happening because of what is about to happen: Jack would just laugh and try to fuck David Tennant, and so would you, frankly, which is why Rose has to be alone: so it'll hurt more. But this hurts too. He'll be okay. You can be sad, but don't be worried.
Rose awakes on the floor as the Doctor pilots the TARDIS, asking what happened. And I think that what the Doctor is doing here is called lying, but for very good reason. He's got a very measured, calm tone as he asks her what she remembers. "It's like... there was this singing?" I love that. It would sound like singing. "That's right!" he cheers. "I sang a song and the Daleks ran away." Which I could buy, because: lateral jump. Rose reaches back for the memory. I wasn't too sure about this at the time, because if she doesn't remember, if she's not changed, then she's just another Cathica. Contemplio without retentio is just watching TV without tasting it. So I think that probably the Doctor, and not the TARDIS, wiped Rose's memory. Because only the Doctor knows what it's like to exterminate a whole race. Even if it's just a crazy cult approximation of the real deal, it's too big to carry. And he loves her too much for that. Too many umbrellas' worth of love, for that.