"Probably. But it's not happening." That wasn't the reason he went out--it was mostly a futile attempt to exhaust himself--but he suspected it wasn't a coincidence that he traced a path very similar to the one that he and Cassandra always followed when they went out together. The two of them together went into more dangerous areas than either of them individually, but Jason had managed without her, which probably would have been even more depressing if there had been anywhere left for him to fall.
"The other night I just sat there and tried to make myself cry. I mean, I'm effectively immortal. Eventually Cassandra will probably show up again. But odds are good that she won't remember me, and she'll have led a different life from my Cass, so she'll basically be a different person. And then eventually she'll leave or die, too. But nothing." He shrugged. "I suppose making my peace with a long lifespan is a bright side, of sorts."