It is weird but I think what he means is he is so attracted to the beta and when he smells baby lotion, it piss him off because he lusts towards beta and smelling baby lotion on him then makes him feel sick in head. He don't want to be attractive toward that smell, that's why he kept telling him to change it but he doesn't. He doesn't like that baby lotion, "he likes beta and get turn on by him" is basically the point since they're in relationship for 7years but didn't have sex

??? Why is no one talking about that fuck ass baby lotion why would the author even do that