You had gone on the deep end after he jumped. He was a hero. He saved the world from the apocalypse. You knew that. But it didn't make the defeaning pain of losing Sam any better. He was your world. You were his. You had been engaged. You were supposed to get married.
But he had to be a self-sacrificing douche bag.
Now, over a year and a half later, a shit ton had happened that you didn't even know about. Sam had been pulled from hell, albeit soulless. Dean had left Lisa and Ben. He had retrieved Sam's soul. Sam was whole again. He didn't remember the things he'd done over the year and a half soulless. Now, he desperately wanted to see you.
Dean was driving Sam to the motel you were staying at. You'd continued hunting in an... unhealthy state. But Sam didn't know that. Last he remembered was jumping. Sam was excited to see you again. His fiancée. Dean sighed, his eyes still on the road as he spoke up.
"Just... prepare yourself." Dean muttered, his tone solemn.