[ She knows that Aymeric loves his city and everyone who lives there, and that he would do just about anything to protect it, so it is crystal clear to her that he is a good man and will treat her sister right. She will just have to work through her nerves about approaching him. ]

I mean, you love him, and that is good enough for me. I just need to get to know him like you did. [ As friends, of course. But Aymeric seems to only have eyes for her sister, as it should be. ]

The way he talked, he made it sound as though he has to continue doing whatever it is that he does, because the future of Eorzea depends on it. He said he couldn't tell me more.