How the hell did I not see that little shit there?! I feel so stupid now. XD
That said... 8 endings my ass. It's basically 3 endings with the 3rd having sub-variations at the literally final choice, because if you don't use Aphrodisiacs, reaching Reason 0 will have you hitting most of these events anyway and at that point there's no point in not getting the rest.
That said, I'm mildly curious about what would happen if you did a pure ending, and then lowered her Sanity to 0 with Aphrodisiacs, would you still have all the options?
Eh.... not worth finding out tbh...