Alistair is silent for a few beats, trying to gear up to not sound disappointed, which for him means trying not to be disappointed. He doesn't fully succeed before saying, "All right," acceptance laced with the barest hint of I expected better and—something. Fear, maybe. But not enough to warrant making Zevran stay if it will kill him, not enough to try to make him feel guilty for leaving. There's still Leliana. He wouldn't be entirely alone.

An exhale. He moves his hand from Zevran's middle to his shoulder, then his cheek. Blindly. He nearly misses, covers it with an equally blind attempt to affectionately smooth the hair tucked behind his ear.

"If I don't see you again," he starts, and doesn't know how to finish.