@KyuKyu that's the bait that you see at the surface but if you pay really close attention you'll notice that Homura has never actually done anything wrong. She did what she did for Madoka and will see it through to the end. However she's also convinced that she needs to be the only one in her spot for Madoka to be happy. What Madoka will do is be that way-more-mature-and-loving-than-any-world-would-ever-deserve person she is and knock some sense into Homura and show that they can share the burden.
That whole dynamic is actually an uber powerful statement that makes Madoka not just a fantastic show, but a fantastic show with a lot of merit. It's probably one of the best lessons this planet could ever be so lucky to learn. If only more people were blessed with the chance to watch it.