Sirius hated this, he hated that Dumbledore meddling in all of this - he was perfectly happy hating Peter, and he could very easily go on being perfectly happy hating him for the rest of his life, and he wouldn't lose any sleep over it. He doubted very much that befriending Peter again would help any of them - it was far more likely to get them all killed again.
"I don't think anything can make that better." He shook his head, resigning himself to the idea of possibly seeing Peter again, though he hoped there would be some hexes involved when that day came.