[The problem with what Jasper is saying isn't that it's wrong, but that it's entirely too right, and Lapis knows this. And she really shouldn't let it, but it does dig into her own insecurities, and that feeds into her anger and frustration.]

At least I changed, unlike you! Why are you even here, Jasper? I know you don't care about organic life. There's no reason for them to pick someone as dull as you as a hero to save the world.