If every text from your ex feels like a trap and every handoff turns into a standoff, the problem may not be your communication skills — it may be that the usual advice was never designed for a high-conflict person. You cannot control how your ex behaves. You can control what you send, when, and how — and that is where your power is.

Why the usual advice doesn’t work

“Just talk it out” assumes good faith on both sides. With a high-conflict ex, attempts to explain, defend, or reason often make things worse — because for a high-conflict person the goal of the conflict is frequently the conflict itself, not a resolution. Once you stop trying to win the argument, you can start managing the exchange.

Shift your focus to what you control

You cannot make a high-conflict person be reasonable, fair, or calm. But you decide the content, timing, and tone of every message you send. That single shift — from trying to change them to managing yourself — lowers the temperature of nearly every exchange.

Practical rules for every message

  • Keep it BIFF — Brief, Informative, Friendly, and Firm. A short, calm reply gives a high-conflict person far less to react to than a long, defensive one. (See how to write a BIFF Response®.)
  • Stick to business — schedules, logistics, and your children’s needs. Leave feelings, history, and blame out of written exchanges.
  • Use a businesslike channel — email or a co-parenting app, so communication is written, time-stamped, and unhurried. Avoid heated phone calls and late-night texting.
  • Don’t take the bait — when a message is built to provoke, respond only to the part that genuinely needs a response, and let the rest go.
  • Propose, don’t argue — instead of re-litigating the past, make a clear, specific proposal about what happens next.

Protect yourself — and your kids

Keep copies of important exchanges in case you need them later. Never use your children as messengers or put them in the middle of adult disagreements. If contact has to continue, limit it to what is necessary and keep your responses neutral and factual.

The bottom line

Communicating with a high-conflict ex will never be effortless — but it does not have to run your life. The patterns are predictable, and your responses are a skill you can build. If you would like the tools and classes that make it easier, explore HCI’s resources for individuals.