Work Text:
He's been watching over Jack's corpse for hours. Hasn't even examined his own new body yet.
Is it supposed to take this long? He's never even asked.
Regeneration energy's from the Vortex – the same power that made Jack immortal. What if they've found the one thing that can kill Jack permanently?
What if his selfish wish not to die alone has cost him the only friend he wouldn't have had to lose?
Maybe he should be glad for Jack's sake. But it's so hard to lose someone he…
He's saved from finishing the thought by a desperate gasp for air.