Every hard conversation is really three conversations at once
Stone, Patton, and Heen's foundational framework splits any difficult conversation into three layers happening simultaneously: the "what happened" conversation (disputes over facts, who's right, who's to blame), the feelings conversation (emotions usually left unspoken but driving the tension), and the identity conversation (what the situation implies about each person's competence, goodness, or worthiness of love).
Most people, they argue, focus almost entirely on the first layer — arguing over facts and blame — while the other two layers, often the real source of the conflict's intensity, go completely unaddressed. This explains why resolving the factual dispute frequently doesn't actually resolve the tension between people.
Their practical implication is that a conversation can't be fully addressed by facts alone; a durable resolution requires attending to feelings and identity too, even though those layers are harder to name directly. Before addressing the facts, ask what feelings and identity stakes are also quietly in the room.