At the Grave(Idk what to call this)

Karl and Nick(Sapnap) used to know each other, far back, but then Nick moved. Karl met Alex(Quackity) and started dating him for 3 years before Alex and Karl got into a car crash and Alex died leaving Karl with some major trauma and also brain damage making him forget almost everything about his previous life. He decides to go to college and meets Nick there once again.
Disclaimer: I don't really know how college works.