He has multiple love interests! my PRIMARY canon partner for him is Aurora (his co-wol), but I haven't forgotten about G'raha either!! Robin has two hands! He has canon children with both of them, actually :> Estinien is another more lowkey one but they have a funny connection and a lot of interesting parallels. And a couple of friend's wols, too!

What Robin truly likes in a partner is just someone being their truest most genuine self; it's something he really respects in a person, that in turn he himself can learn to be vulnerable around... Someone who makes him feel like he doesn't have to keep one of his many masks up, and can help him rediscover who HE truly is as a person, rather than the many people he has to try to be. And they have to be able to make him laugh- that's a huge one! It's probably far easier to make him laugh than his general vibe might suggest.