[of course he doesn't know what it means. he is not the right aegon. anything helaena could think to tell him would make that abundantly clear. he would be hurt, and she does not wish to hurt him right now. she has never been any good at explanations, anyway.]

You don't know them.

[she can't imagine why any of these strangers would have any opinions of them at all. of course, she is a woman, and she knows there are men who need no pretext to hurt her, but that shouldn't be a problem for aegon.]

This is not King's Landing. That is what I mean.

[it's not the only thing she meant, but it occurs to her he might not have realized they left their world.]

They are not our people. They cannot turn on us.

[now she feels a bit out of her depth...]

Any one of them may find they do not like us, but they would have to speak with us first, I think.