The Third Thing — An ADHD Relationship Guide for Couples | 40-Page PDF with Worksheets

How couples build a life that ADHD can't knock over. A research-grounded, 40-page illustrated guide with scripts, exercises and printable worksheets — for both partners to read together.

Most ADHD relationship advice tries to fix a person.

The partner with ADHD is told to try harder. The partner without it is told to be more patient. Both instructions fail for the same reason: they ask two people to solve a structural problem with personal effort.

This guide takes a different route. It assumes you are both already trying as hard as you can, and that the trying is not the problem.

What you build instead is a third thing — a shared external system that holds the running of your life, so your relationship doesn't have to. By the end you will have mapped the invisible load in your household, moved the parts of it that ADHD reliably drops out of your heads and into a structure you both maintain, installed two short rituals that keep it alive, and agreed a repair protocol for the days it falls over anyway.

Grounded in the actual research. The guide cites Russell Barkley's executive-function model, a 2023 systematic review in PLOS ONE on emotion dysregulation, and a 2021 meta-analysis on time perception. It also tells you where the evidence is thin — including why the most popular idea in online ADHD communities rests on five small studies — and corrects a widely repeated divorce statistic that turns out to be measuring something else entirely.

Written for both of you. Not a book one frustrated partner reads alone. It is designed to be read in the same room, with exercises you do together.

It is designed to be finished. Two hours to read. One afternoon to set up.

What's inside

Part One — Core Understanding. The three mechanisms that actually break: executive function, emotion dysregulation, and time perception. Why the gap between knowing and doing is a symptom, not a measure of how much someone cares.
Part Two — The Four Traps. The parent-child dynamic, the efficiency trap, the reminder loop, and the apology–repeat cycle. Name them and you stop falling into them.
Part Three — The Five-Phase Action Plan. The Load Audit, the Three Sorts, building the third thing, installing the two rituals, and writing your repair protocol.
Part Four — Eight Scripts. Exact language for the eight moments these conversations reliably derail.
Part Five — Troubleshooting. What to do when the system collapses, and how to tell a bad week from a real problem.
Part Six — When This Is Not Enough. Honest guidance on when to get professional support, and a clear line on what is not an ADHD problem at all.
Two printable checklists covering every phase.

Format: 40-page PDF, A4, instant download. Print-friendly worksheets.