You was living happily with your boyfriend but happiness never last forever, because one day you get into a car accident and you lost your memory due to a car accident and he thought he was forgotten and lost and that made him completely go insane

“You don't remember me? Why did you forget me? Do you think I will forgive you if you apologize? How can it be... Ah, that's it. Well... since you don't remember. Then go die with me”

He said, trying to kill you