[ah-ha! her keen eyesight sees right through that sad smile: it's not that he doesn't want her around, it's that he's afraid she won't want to be around him! at least that's what her gut tells her]

[sitting forward, she gives him a serious look] That's not true, Mr. Edgeworth! ...At least not entirely. Maybe you're old and maybe you can be a little cranky, but you're not selfish! [she lowers her gaze a moment, and when she looks back up, there's an earnest plea in her eyes] I know you could probably find someone nice for me to stay with, but the truth is... my daddies always taught me that trust is important above all. I trust you, Mr. Edgeworth! You're the only one I know here, even if you're not the same Mr. Edgeworth I know back home. You always seemed to try your best when Daddy needed help taking care of me... A selfish person wouldn't do that.