Co-parenting with a difficult former partner is one of the most emotionally exhausting experiences a parent can face. Whether you're dealing with hostility, manipulation, or constant boundary violations, the goal is the same: keep communication functional enough that your children don't suffer for the conflict between adults.
The BIFF Method
BIFF stands for Brief, Informative, Friendly, and Firm. It was developed by family law attorney and mediator Bill Eddy as a communication framework for high-conflict situations.
Brief means one paragraph or less. Informative means facts only — no opinions about behavior or character. Friendly means neutral and civil in tone, not warm. Firm means you don't invite debate or follow-up. Apply BIFF to every email and text, and watch the escalation cycle slow down.
Shift to Written Communication
Phone calls and in-person conversations give a difficult co-parent the ability to gaslight, interrupt, and deny. Written communication creates a record that can be reviewed, shared with attorneys, and used in court.
Restrict communication to email or a dedicated co-parenting app. Respond on your own timeline — not immediately — to avoid reactive responses. Never write anything you wouldn't want a judge to read.
Keep Kids Out of It
Children should never be messengers, informants, or emotional support systems for a parent's conflict with the other. This is true even when the other parent is doing exactly that. Your restraint protects your children and typically strengthens your position with the court.
CoParent.Help (https://www.coparent.help) was designed for exactly this situation — a neutral, documented communication channel that keeps interactions on record and reduces the emotional charge of every exchange. Many families use it as their primary co-parenting communication tool.
Source: CoParent.Help