I’ve sat across from a lot of couples who are describing the same thing without knowing it.

One partner says the other is “checked out.” Emotionally unavailable. Present in the room but somehow not quite there. The other partner looks genuinely confused, not defensive, not dismissive, but actually puzzled, as if the complaint doesn’t match their experience of themselves at all. They thought they were being a good partner. They came home. They showed up. They don’t understand why it’s never enough.

That particular dynamic, the exhausted one and the genuinely baffled one, has a pattern I’ve come to recognize. Not in every couple, but in enough of them that I’ve started to name it earlier in the conversation than I used to.

Sometimes, what looks like emotional withdrawal is actually neurodiversity. And often, neither person knows.

What I Mean When I Say Neurodiversity

Neurodiversity describes the natural variation in how human brains are wired, the full spectrum of neurological difference that includes Autism Spectrum Disorder (ASD), ADHD, dyslexia, and more. In couples, it becomes clinically significant when partners have meaningfully different neurotypes, meaning their brains process emotional experience, social cues, and relational needs in fundamentally different ways.

This is not a problem with either partner. It’s a translation problem. Two people trying to connect across what I sometimes think of as different operating systems, with no shared manual and no one telling them what’s actually happening.

The partner on the spectrum is not being cold. The neurotypical partner is not asking too much. They are both, genuinely, doing their best. But when the underlying neurological difference goes unnamed, all that effort tends to collapse into a story one or both of them finds unbearable: I am not enough. They don’t really love me. This is just who we are.

None of those stories are true. And this is exactly where therapy, the right kind of therapy, can change things.

According to the CDC, an estimated 2.2% of U.S. adults, more than 5.4 million people, are living with ASD. Many  have never been formally diagnosed.

The “Lost Generation”: Why Your Partner May Have No Idea

Here is something that surprises most of my clients when I share it: the average time between a person’s first contact with a mental health professional and an actual ASD diagnosis is roughly eleven years. In some cases, that gap stretches to five decades.

Five decades.

These are people who have been in and out of therapy for years, treated for depression, anxiety, personality disorders, relationship dysfunction, all of which were real, and all of which were often downstream of something that was never identified. Researchers have started calling this the “lost generation” of autistic adults: people who grew up before the diagnostic criteria expanded, before clinicians were trained to look, before anyone thought to ask the right questions.

Gender matters here too, and a lot. About two-thirds of women with ASD receive their diagnosis after age 18, compared to the majority of men, who are diagnosed in childhood. Women learn to mask. They learn to mirror, to compensate, to read the room just well enough to get by, and that masking makes them invisible until the mask becomes too heavy to carry.

“These adults missed out on services, and therefore often experience pretty significant challenges, including mental health conditions.” — Dr. Jackie Shinall, PsyD, Prosper Health

Inside a long marriage, that exhaustion from masking tends to surface as exactly what the neurotypical partner is describing in my office: withdrawal, shutdown, the lights-on-nobody-home quality that gets interpreted as not caring. It is not that. It is almost never that.

What This Actually Looks Like in a Relationship

When most people picture autism in an adult, they picture something obvious. What I see in my office is rarely obvious. High-functioning ASD, historically called Asperger’s before the DSM-5 consolidated the spectrum, often looks like a quiet, consistent pattern that is easy to mistake for something else entirely.

Here is what couples describe to me:

• A partner who is loyal and present but cannot track emotional subtext in conversation — they hear the words but miss what the words mean
• Responses that are logical, factual, or solution-focused when what was needed was simply to be heard
• Deep, encyclopedic knowledge about specific interests alongside genuine difficulty with small talk or unstructured social time
• Sensory sensitivities that affect intimacy, shared spaces, or daily routines in ways neither partner has ever thought to connect
• A need for predictability and routine that creates tension with a partner who wants flexibility and spontaneity
• What the other partner experiences as “being checked out” during emotional conversations, not because the person doesn’t care, but because processing emotional information in real time takes significantly more cognitive effort than it does for a neurotypical brain

None of these traits, in isolation, confirm anything. Many neurotypical people have some of them. But when they appear as a consistent constellation, and when they map onto a lifetime of social effort, misread relationships, and quite exhaustion, they deserve careful attention.

A Frame I Sometimes Share: The Curious Incident of the Dog in the Night-Time

I occasionally recommend Mark Haddon’s novel to couples I’m working with, not as a diagnostic tool, but as a doorway.

Christopher, the teenage narrator, is intensely logical, deeply honest, and genuinely loving. His inner world is organized by patterns and systems, not emotional narratives. He cannot process what he cannot see directly. And Haddon writes him with such specificity and warmth that many readers, including many of my clients, have described finishing the book and sitting very quietly for a while.

Because they recognized someone. Sometimes their partner. Sometimes, unexpectedly, themselves.

Haddon himself has been careful to say the book is not a clinical portrayal. But as a piece of imaginative literature, it gave language to something many couples had been living without words for. That recognition, “oh, that’s what this is”, can be the first real breath a couple takes together in a very long time.

Why It Goes Unaddressed for So Long

Long-term neurodiverse couples develop adaptations. The neurotypical partner learns not to expect certain kinds of emotional reciprocity and quietly takes on the work of emotional translation. The autistic partner develops scripts and routines that allow them to function well professionally and socially. The relationship looks functional and in many ways it is. There is loyalty, history, genuine partnership.

What there usually isn’t is sustained emotional intimacy. The sense of being truly known. The ability to move through conflict without one or both partners shutting down entirely.

“The most successful neurodiverse relationships are the ones where the needs and expectations are well matched.” — Grace Myhill, Director, AANE Neurodiverse Couples Institute

One of the reasons couples wait so long to address this is that the neurotypical partner often carries a private narrative of personal failure. If my partner doesn’t connect with me emotionally, something must be wrong with me. That internalization keeps people out of therapy far longer than it should.

The other reason is stigma. Even as awareness of ASD has grown considerably, suggesting to a spouse in midlife that they may be on the spectrum can feel like an accusation rather than an explanation. One of the things I work to do in the room is create a different frame entirely – one where the diagnosis, or even just the possibility of it, is information. Not a verdict.

What Our Work Together Actually Looks Like

The most important thing I want you to know is that couples therapy for a neurodiverse relationship is not about diagnosing your partner across my desk. I can’t do that, and I wouldn’t. Formal ASD assessment in adults is a specialized process that takes time, trained evaluators, and standardized instruments. What I can do is help you understand the patterns that have been shaping your relationship, often for years, and build a new framework for moving forward.

In my work with neurodiverse couples, I focus on:

• Naming communication differences without pathologizing either partner
• Helping neurotypical partners grieve the relationship they expected while finding genuine value in the one they actually have
• Helping autistic partners understand how their internal experience lands with their partner — and building tools that work neurologically, not just behaviorally
• Reducing the cumulative relational strain that neurotypical partners often carry after years of unacknowledged disconnection
• Exploring whether individual assessment may be warranted, and helping couples navigate that process with care when it is

I work with couples who have a formal diagnosis in the room, couples where both partners are beginning to wonder about themselves, and couples where the question has never been raised but the pattern is unmistakable. We start wherever you are.

Intensives for Neurodiverse Relationships

For couples who have been living inside these dynamics for years, sometimes decades, the weekly therapy model can feel too slow. The relationship has accumulated layers of misunderstanding, hurt, and mutual withdrawal that a fifty-minute session cannot move quickly enough.

Our Couples Intensive program at The Relationship Center is designed specifically for those situations. Over concentrated, clinician-led days, couples are able to move through material that can take months in traditional weekly therapy. The intensive format is particularly well-suited to neurodiverse relationships because it allows for the deep, explicit psychoeducation and pattern-mapping that autistic partners often respond to more readily than open-ended, emotionally-driven sessions.

If you read this and thought: that is my marriage, I hope you’ll reach out. Not because something is broken, but because the relationship you actually want may be closer than it seems right now.