"I guess not." And isn't that just as terrifying. What is he going to do without missions and enemies to flee? Who is he without those things. The Alliance had made Cassian into what he was and without them...that's twenty years of an identity to reconfigure. His vision goes black around the edges with the weight of it and Cassian looks down again, forcing himself to look Jyn in the eye, to focus on her.

"I wonder what it'll be like. Having a home in one place." He's trying to spin it into something positive but he thinks Jyn is smart enough to recognize what it is. There's no polishing up a terrible situation, not with even the warmest and brightest belief, and Cassian lacks that on a good day.

He may as well adopt an alias. Say he's someone else. It's better than figuring out who Cassian Andor is now.