[ More everything. More time, more time with loved ones, more-- Yes, that's simply it. More everything: what a succinct way to put it, and she's glad, on some level, that he's able to admit to that wish. ]

....I know you are. [ She says, quiet. ] I can see it in your expression. [ Loss effects him as greatly as any other. He feels it strongly, and in a world like this, where loved ones come and go, return and forget, then perhaps leave again, it's difficult to persevere.

But she has seen him persevere. When Ignis left the first time, when Luna left; and when Ignis returned, Noctis had made the most of the opportunity that time, too. It isn't as if their time here had been wasted--... but as he implies, it isn't ever enough. Such is love. ]

You know.

I'm not quite sure that he'd want to change anything, either, of all the time you had with him. [ She can't speak for Ignis, but she can speak as someone who loves Noctis, too. ] But you have to forgive yourself, for not having more. [ Not that it is his fault at all, but the perception of not doing enough, giving back enough, or having enough time with Ignis is clearly effecting him. ]