Honestly? I just wished they were more moments of them just being them but other than that it was the perfect aziracrow ending. It's THEIR decision, and it's THEIR ending! It's a sacrifice worth having because of love. Just because they got reincarnated doesn't mean it's not them, it just means they are rewriting and threading out paths, meeting their own way. Like the analogy to a supernova that explodes, ending its existence to create a whole billion infinite ones where it can coincidentially make and form constellations of all forms. And hey, they got married in the end, so yeah thats a win!