[Salieri listens quietly, thoughtfully, though the last bit makes him huff out a small chuckle. After that though, he's pausing to consider.]

...it is, perhaps, a questionable thought, but...seems that Lord Hades needs something to remind him of not only that nostalgia, but that as relationships progress, they grow and change and that is not necessarily a bad thing, nor does it mean that Lady Persephone isn't going to return.