Trollyus. Juuuuust putting that out there. He'll try and satiate him with as much horse talk as he can, but it might not be much.
Psyche might be his link back? He's unsure of which Erotes he is (though it's kind of obvious to others, maybe, that he's the not-fun one) and while he doesn't have any memories, he'll probably try and leech hers so he can have some too. If Hya is from his neck of the woods, then for sure, it's actually a freakishly small world there, so it's always possible (I can't tell you how many people I know who know someone else I know that's nowhere near me).