I swear, with every passing chapter I understand less and less. But probably in a good way.
I wouldn't mind the unreliable narrator twist, but that would also mean that all of her reincarnations weren't real (which is definitely not true since she's very knowledgeable about the world and the general flow of events). The idea of being in a novel might've been instilled in her by Nancy, but is that really it? Hmm...
Some of the mysteries here have a very logical, almost mundane resolution. At times, it can even be passed for a detective story.
But the biggest question, the nature of the loops themselves, remains.