I get Rix. Yeah, Nuah said he likes/loves him, and that he doesn't want to leave his side. But he is also very young, and a divine beast. He might not really have a concept of romantic love, as he also seems to love all of Adellah's children. at least that's what Rix seems to think. That a divine being won't feel this earthly love he feels. He's wrong ofc, but he also can't hear Nuah's thoughts like we can. I would not dare to think a divine being would reciprocate my romatic feelings either in his place...