
he believes in the loop which bring his "memory" of what he needs to do back this continues the loops till ml appears to u simply think hes just gonna believe in words of a crazy lady and his daughter that abused him's words just cuz they said them no.
its cuz loop occured and each time that triggers his memory until he isnt automate he becones aware. thats why he know bot cuz my momma told me type thing

Just go re read the story. He believes in the loop because the coin is proof. That's it. Theres nothing more to it. And once the loop restarts he doesn't need to do anything, so theres no need to remember anything either. He just trapped the MC in the loop for revenge bc why not try ? And the coin proved that the MC's mother didn't lie.
like we started with priest guys rmbr n looping -> mc rmbrs and loops -> ml loops for no reason who's next? ir does cycle go back priest? i left the storg after ml 1st rmbrs i thought it wud b interesting but we r still there ????