Co-parenting
How to Communicate With a High-Conflict Ex: BIFF Responses and Other Scripts That Work
Co-parenting with someone who thrives on conflict is a specific kind of exhaustion. Here’s how to keep messages short, calm and court-ready, with real examples, without losing your voice or your boundaries.
The short version
- Keep it BIFF: brief, informative, friendly and firm.
- Don’t JADE: skip justifying, arguing, defending and explaining.
- Answer only the actual question, not the accusations around it.
- Write every message as if a judge will read it, because one might.
- You don’t have to reply right away. Waiting until you’re calm is a strategy.
You start out just trying to solve a simple problem: confirming a pickup time, updating about a school event, asking a reasonable question. Suddenly you’re in a tornado of accusations, drama or manufactured emergencies.
It’s not you. And you’re not imagining it. Some people use communication itself as a control tactic.
This post is here to help you protect your energy, stay grounded, and communicate in ways that reduce the chaos instead of feeding it, without losing your own voice or boundaries in the process.
Why “good faith” communication doesn’t work with a high-conflict ex
In healthy co-parenting, parents assume:
- We both care about the kids.
- We both want to solve issues.
- We both want less drama.
But with a high-conflict ex, communication often has a different purpose. Instead of resolving a question, your ex might be aiming to:
- keep you off-balance,
- provoke a reaction,
- derail the conversation,
- punish you for something,
- gain power in decision-making,
- or simply re-engage you emotionally.
Once you understand their goal is different from yours, the confusion clears. You can’t use normal skills to negotiate with someone who benefits from instability. So instead, you shift your strategy.
1. Keep it BIFF: brief, informative, friendly and firm
The BIFF Response®, developed by Bill Eddy of the High Conflict Institute, works because it denies your ex the emotional “hooks” they’re looking for.
You: “Pickup is at 4:30pm at the school entrance. Let me know if anything changes.”
No defending yourself. No explaining your intentions. No firing back. Just neutral information.
2. Stop JADE-ing: don’t justify, argue, defend or explain
When someone wants conflict, JADE gives them fuel. You think you’re providing clarity, but they hear an invitation.
Try: “I’ll be there at 5:15.”
Emotionally boring. Logistically clear. Critically un-debatable.
3. State your boundary without asking them to approve it
You don’t need your ex to agree with your boundary for it to be valid.
Try: “I won’t respond to messages after 8pm unless it’s an emergency related to the kids.”
This is important: a boundary is about your behavior, not theirs. They can argue, complain or throw a fit, but the boundary still stands.
4. Treat messages like they might be read in court (because they might)
This one helps two things at once: it protects you legally, and it freezes their attempts to bait you.
Ask yourself: “If a judge read this message, would I feel okay about how I showed up?” If the answer is no, rewrite it shorter. And calmer.
Judges, guardians ad litem (GALs) and child and family investigators (CFIs) don’t have time for novels or emotional back-and-forth. But they do notice who stays on topic and who derails. Saving these exchanges is also part of documenting coercive control for custody.
5. Respond to the actual question, not the drama around it
High-conflict messages often contain a question, an accusation, a guilt trip, a random unrelated complaint and a threat, all stuffed into one paragraph. You don’t have to take the whole package. Just answer the neutral part.
You: “Yes, I’m taking her to the appointment on Thursday at 3pm.”
Clean. Focused. Zero emotional calories spent.
6. When you don’t know what to say, say less
Silence is a strategy. Short responses are a strategy. Delaying until you’re regulated is a strategy. You do not have to reply in real time.
Sometimes the most grounded thing you can do is wait until your heart rate slows, your thinking clears, the emotional charge settles, or you can focus only on the kid-related issue.
You’re not being difficult. You’re preventing escalation.
7. If they escalate, you don’t have to follow them up the ladder
Some people escalate until you match their energy. The trick is: don’t climb. If they get louder, get calmer. If they spin off-topic, get narrower. If they insult, ignore and redirect.
Your goal
- ✔ Keep communication functional
- ✘ Not to teach them a lesson
- ✘ Not to win the argument
- ✘ Not to get them to see your point
Those goals would make sense with a reasonable person, but this isn’t a reasonable dynamic.
If you need help drafting responses, Aimee can support you
You don’t have to figure out the perfect wording on your own. Aimee can help you:
- rewrite messages in a neutral, court-ready tone,
- keep communication focused on the kids,
- avoid escalation, and
- keep track of patterns: Aimee Detects finds the moments that matter in the messages you upload and adds them to your timeline.
Some people use Aimee for every single interaction with their ex because it lifts the emotional load and gives them steadiness when everything feels charged.
Frequently asked questions
What is a BIFF response?
BIFF stands for Brief, Informative, Friendly and Firm. It’s a way of replying to hostile messages, created by Bill Eddy of the High Conflict Institute, that sticks to useful information, stays courteous and closes the topic without taking the bait.
Do I have to respond to every message from my ex?
No. Many hostile messages don’t need a reply at all. Respond to what’s required for the children, such as schedules, school and health, and follow any communication rules in your court orders.
Should I use a co-parenting app?
Many courts order or recommend co-parenting apps because they keep a time-stamped record and can discourage hostile messages. If you don’t have one ordered, ask your attorney whether one would help in your case.
What if my ex twists everything I say?
Say less, and stick to facts and logistics. The shorter and calmer your message, the less there is to twist, and the better it looks if a judge ever reads it.
Draft your next reply with Aimee
Paste in the message you’re dreading. Aimee helps you write a calm, short, court-ready reply, and keeps a record of the pattern.
Talk to Aimee Free to start. No account needed.