[Truthfully, it is indeed both--but Luke won't say that, because that selfishness is something he's shoved down since he was a child, so much so that it is unconscious and ingrained in him now. The lies he tells, the facades he wears--all of it has tangled selfishness and selflessness so messily, but he doesn't often examine it too closely. Instead, he takes control over situations before anyone else can think to pick at the knots, and deflects, deflects, deflects if they try.

So the answer he gives her isn't a lie, even if it's not the whole story.]

The work I do is top secret and very dangerous. It's not only her--I don't tell anyone the details unless they absolutely need to know. None of us do. It's for everyone's safety, and to make sure our missions aren't compromised. It couldn't be helped that time, but normally, I would never put her life at risk that way.

[Sometimes you are a secret agent and it's messy...

But he knows that's not exactly what she's asking either, and he did just put her through reliving that memory. He can give her a little bit more honesty, even if it's hard.]

...The person I am around a man like him is not the same as the person she grew up with. I don't... want her to think I would ever be like that with her. I want our memories to be happy ones.

[He has only ever tried to be warm, and safe, and reliable for her. I'll only be the person you like when I'm with you.]