A married couples question is a question asked specifically to update what you assume you already know about your partner, not to fill conversational space or pass time.
A love map is the internal, continuously updated picture each partner holds of the other's inner world: their stresses, hopes, fears, and the small daily details of their life.
A spicy question for couples is a question designed to explore desire, attraction, or vulnerability that a partner might not otherwise bring up on their own.
Question fatigue in relationships is the flattening effect that happens when couples questions are treated as tasks to complete instead of conversations to sit with.
Long-distance communication structure refers to whether a couple's contact follows a predictable, intentional pattern, as opposed to random, reactive texting driven by whoever happens to be free.