micropretension
A statement that conveys an indirect, subtle, or unintentional affectation that is superfluous or irrelevant to the context of a conversation.
Person 1: "Did you watch that show?"
Person 2: "I don't have a TV."
Person 1: "Are you hungry?"
Person 2: "I'm a vegan."
Person 1: "Did you watch that show?"
Person 2: "I don't have a TV."
Person 1: "Are you hungry?"
Person 2: "I'm a vegan."
They were subject to many acts of micropretension at the vegan restaurant.