[Given his explanation, she is unsurprised with what he chooses to share. A pokemon that allows him to wield the blades themselves. It indicates that he has quite the close bond with this one in particular.

When he inquires about her own, her gaze drops and she moves her skirts just so that the ralts that's been following her since her arrival. It's a small little thing. A bit shy and reserved. Or perhaps that's simply 'stranger danger.']

This one here. Although I must confess that though it seems adamant to stay near me, we do not know much about one another.

[Truthfully, the ralts likely knows more about Rhea than the reverse.]