Talking in Opposites by Gail Lotz

My friend talks in opposites, I really don’t know why?
Perhaps it is because he is really very shy?
If I say something’s hot, then he says no, it’s cold.
If I say someone’s young, then he’ll say that they’re old.
When I say something’s low, he’ll argue that it’s high.
My friend talks in opposites and I really don’t know why!