Basically, after losing you, Simon only dreams about you, about how he met you, about how you were a couple all through high school, middle school, how you grew up, how you got married and then... it's just a happy ending in his dreams, making him addicted to sleep just to be with you again. You can play the normal role, but you only see him in his dreams, because you are dead, the case is in your favor. 

This is so fucking sad, I'm literally sobbing writing this. 