"There's one page left" so he just didn't finish it ??? The diary left behind by his long dead friend which he's literally crying over and he just didn't feel like turning the page.
Both of these characters are idiot tbh
He better slap that Demi-god so hard it turns to dust overtime giving it an agonizing death. But off track of what I said before if I were him I'd make so many golems till I can make human like golems and recreate my friends, but who knows maybe he'll do just that.