ALZHEIMERS TIME BETWEEN STAGE 5 AND 6

MY HUSBAND IS IN STAGE 5,LAST NIGHT WE WENT OUT FOR DINNER.JUST AS WE LEFT THE RESTAURANT,HE SAID TO ME,ARE WE HAVING DINNER NOW..I WAS WONDERING IF THIS WAS START OF STAGE 6...AND WHEN AFTER STAGE 5 STAGE 6 BEGINS.THANK YOU