“Here’s a new phenomenon I’ve tentatively identified: oppositional conversational style.
A person with oppositional conversational style is a person who, in conversation, disagrees with and corrects whatever you say. He or she may do this in a friendly way, or a belligerent way, but this person frames remarks in opposition to whatever you venture.
I noticed this for the first time in a conversation with a guy a few months ago. We were talking about social media, and before long, I realized that whatever I’d say, he’d disagree with me. If I said, “X is important,” he’d say, “No, actually, Y is important.” For two hours. And I could tell that if I’d said, “Y is important,” he would’ve argued for X.”
-Gretchen Rubin, author of the Happiness Project
via Boing Boing