[ y'all;; why can't idols just sing and dance and be friends ]

Are one sided nicknames that much of a transgression? [ That sounds kind of tsun to him. Cute. Though he can sort of understand the discomfort in being nicknamed even though you've given somebody else one- not out of experience, but just the thought that one shouldn't necessarily have to return affection equal to what's received, and the other way around. ]

Maybe the obvious nickname is stupid, like "Natto." There are different ways that person can accept affection; that's not unfair.