Forever Goodbye
"So you're going, then?"
"Yes."
"You don't have to. You could stay here."
"You could come."
"I have a bad feeling about it. Besides, I'm needed here."
"I'm not. I'm going."
"I need you. Please stay. You don't know if it's safe!"
"I trust them. They know what they're doing. It'll be okay!"
"But you can't come back. Not ever."
"My home is dying. I get to go and build a new, better one. I'm leaving. You can't stop me." She picked up her suitcase and walked out the door. "Goodbye," she said.
"Goodbye," he whispered to the empty room.
Okay. The explination? The woman is going on the SEEDS ship (as a frozen passenger), and the man is staying. They're just two faceless characters in the Trigun-verse. I had a really hard time paring this down. Maybe I'll expand it into a one-shot.