Mirror content, name feelings tentatively, and check accuracy without stealing the story. Try, What I am hearing is frustration about missed support, and a worry about reputation; did I get that right? Accurate reflection drains adrenaline, restores dignity, and reopens the mind to problem-solving, creativity, and compromise.
Prefer how and what questions that surface data and options, for example, What trade-offs did we not anticipate, and how might we hedge next sprint? Avoid why when blame is nearby. Curiosity signals respect, expands choice, and leads the other person to author their own commitments.
Move from accusation to aspiration by translating pain into future design. Replace You never with In the next release, let us pilot a pre-merge checklist with ownership rotation. Reframing protects identity, frames experiments, and turns conflict into concrete steps, deadlines, and shared incentives that reinforce momentum.