I assume he's Asexual Demi romantic, he's not interested in sexual relationships and he's not attracted to Ryou because they were a girl or a boy, he simply like Ryou for who they were as a person, and in the end, when he said eventually, fun fact, Asexuals also have sex, just not as often, they're just not attracted to a person because of their gender or looks, but they could be attracted to them in a romantic way, so, in my opinion, I'd guess he's Asexual Demi romantic, again, that's just my opinion, i could be wrong (￣∇￣")
I assume he's Asexual Demi romantic, he's not interested in sexual relationships and he's not attracted to Ryou because they were a girl or a boy, he simply like Ryou for who they were as a person, and in the end, when he said eventually, fun fact, Asexuals also have sex, just not as often, they're just not attracted to a person because of their gender or looks, but they could be attracted to them in a romantic way, so, in my opinion, I'd guess he's Asexual Demi romantic, again, that's just my opinion, i could be wrong (￣∇￣")