Locating the problem, and the path through it, to somewhere new
You know the couple. They can each recite their side of the argument fluently, they’ve done the communication homework, they can even describe what triggered last week’s blow-up with real insight. And still, this week, the same cycle.
Different couples therapy approaches ask different questions about what is keeping the pattern alive, and each of those questions opens up something useful. Acceptance and commitment therapy (ACT) asks what are these two people doing, together, with the thoughts and feelings that show up within and between them, and is it carrying them towards or away from the relationship they want to build? Understanding where ACT places its attention is what makes it a distinct addition to couples work, rather than another name for something already in the room.
One thing is worth being clear about before we go further. ACT couples work is a complete approach that stands on its own. You do not need to be trained in systemic therapy or CBT to learn it or to practise it well. It isn’t an advanced module you add on to another model, and it assumes no prior grounding in either. Where we set ACT alongside other approaches in this piece, it is to show what is distinctive about it, not to rank it above them. If those other models are unfamiliar to you, that is no barrier at all.
More than a pattern, more than a thought
All therapies have different mechanisms for change. It can be helpful to understand these to truly get to grips with practicing couples work rather than individual therapies in a couples setting. For example, systemic approaches can vary greatly between the various schools, yet most look at the pattern between partners: the pursue-withdraw cycle, the triangulation, the way each person’s move calls out the others, for example. This is powerful, deeply relational work, and it puts the interaction itself at the centre. Change comes from shifting the sequence, whether by reframing it, slowing it down, or helping partners step out of the loop and reach for each other differently.
CBT-informed couples work brings a careful focus to cognition and skill: the thoughts each partner carries into the relationship, and the communication and problem-solving skills that help them handle conflict well. It is structured, practical and effective, and change comes from building those skills and testing the thoughts that get in the way.
ACT has its own therapeutic stance, and it also pays attention to interactions and the shared space between the partners rather than inside either one of them. It is less interested in the content of any single thought than in what the two of them do, together, with their inner experience in the moment they are relating. When one partner is fused with a story about the other, or working hard to avoid a feeling that closeness stirs up, that does not stay private. It shapes the move they make toward or away from their partner, which in turn shapes the move that comes back.
Values are the compass for all of this, and in ACT they are directions rather than goals: not a state to be reached, but the kind of partner each person wants to be and the kind of relationship they want to build together. How they want to treat each other when things are hard, what they want to stand for as a couple, what closeness is actually for. A good deal of the work is helping partners find and put words to those values, both their own and the ones they hold in common, and then keep steering by them.
Psychological flexibility is what makes that possible in the heat of the moment: each partner willing to make room for their own discomfort so they can stay present to the other, to hold a thought lightly rather than act on it, to take the partner’s perspective rather than defend their own account, and to keep choosing the move that carries them toward those values rather than away. One partner’s flexibility opens room for the other’s, and it is in that exchange, not in two people doing their private work side by side, that things shift. That is a distinct emphasis, and it is what makes ACT its own approach rather than a restatement of the others.
“What’s this doing for you, right now?”
That question, asked of a behaviour rather than its content, is where ACT couples work spends much of its attention. A good deal of couples work, whatever its theoretical home, gives real time to content: what the argument was about, what was said, who is right about the dishes or the in-laws. ACT is more interested in function, and specifically in function within the relationship. What is this move doing between the two of them right now, and where is it taking the connection?
A partner who goes silent during conflict isn’t just “stonewalling”; the silence might be workable or unworkable depending on whether it’s serving avoidance of unbearable vulnerability, or genuine self-regulation. The therapist’s job isn’t to eliminate the silence but to help the client notice its function and choose, with more flexibility, whether it’s taking them toward or away from the relationship they want.
Where the map and the flexibility meet
ACT couples work pays close attention to the cycle, and it gives you what you need to track it without separate systemic training. You will be following how one partner’s fusion with “I’m unlovable” pulls them into pursuit, which meets the other partner’s fusion with “I can never get this right,” which pulls them into withdrawal, which confirms the first partner’s original story. That is a relational map, and reading it is part of the ACT formulation itself, not something borrowed from elsewhere.
There is a real point of contact here with the systemic idea of rescripting a couple’s story. Both that work and ACT values work invite a couple to describe the relationship they want to be building and to start living into it. A couple naming what they want to stand for together is doing something a systemic therapist would recognise.
What differs is how each goes about it, and in practice that varies from therapist to therapist. Systemic rescripting tends to work with the story and its meaning directly. ACT tends to leave the old story where it is, held more lightly rather than edited, and lets a new one build through what the couple does: values-guided action, repeated, until the lived relationship starts to tell a different story from the one in their heads. There is plenty of overlap in the ethos of the two, even where the route differs. ACT, helps each partner make contact with what is showing up for them in the moment, hold it without being run by it, and take the other’s perspective, so they can do something their shared values would be proud of even while the old pull is still there. The map shows the couple their loop; flexibility gives them room to move differently inside it, toward each other.
Function over form, again
The same distinctive emphasis shows up next to CBT, in how ACT treats a thought. Where cognitive work might ask whether a thought like “he doesn’t respect me” is accurate, and help the partner test and adjust it, ACT asks about function: what is this thought doing in the relationship right now, and what is it pointing to? That doesn’t mean the thought is waved away. “He doesn’t respect me” may be carrying something important, such as a value around being respected or a real pattern that needs raising, and ACT takes that seriously. What ACT doesn’t do is make the work depend on settling whether the thought is true. The partner is helped to notice the thought, unhook from it enough to see what it’s pointing to, and then choose a values-consistent move toward the other person. That might mean raising the issue openly instead of withdrawing or attacking. Skills can still have a place in this work, but they serve values-based action between the partners rather than the correction of a “wrong” thought.
Acceptance as a stance, not a technique
Perhaps the most distinctive feature of ACT couples work is how it holds ongoing difficulty. It does not read every recurring problem as a sign that therapy has failed or that the relationship is broken at the root. Some friction, some difference, some grief about the partner you did not marry: ACT treats a good deal of this as workable, and some of it as a more or less permanent feature of a long shared life, rather than something that must be resolved before the couple can move forward.
That does not mean conflict is off the table as a target. Reducing the kind of arguing that corrodes a relationship is a reasonable, measurable and often values-connected goal. The point is the direction of travel. The question ACT keeps asking is not only whether they are arguing less, but whether they are able to keep moving toward the relationship and the life they value, together, even when a hard conversation is still in the room. Sometimes that means far less conflict; sometimes it means the same disagreement handled in a way that no longer runs the show.
Takeaway messages
ACT-based couples therapy is different because it changes the question the therapist is asking, and because it keeps the relationship, rather than either individual, at the centre of that question. It does not compete with systemic, emotionally focused or CBT approaches, all of which do skilled, relational work, and it does not depend on them either. It is a full method you can learn and use in its own right, giving you a way to read the couple’s cycle and to build the flexibility they need to act differently inside it, toward what they share.
If you already work systemically or from a CBT base, ACT will sit alongside what you do. If you do not, you lose nothing, because none of it is a prerequisite. What makes the work land is getting a working model of the six core processes as they apply specifically to couples, in the relationship rather than adapted on the fly from individual ACT, and that is where the real shift in practice happens. If this sounds of interest, we are delighted to be hosting Lou Lasprugato for a workshop on using ACT with couples in 2027.