Where the theory comes from
British psychiatrist John Bowlby formulated attachment theory in the mid-twentieth century while studying the bond between a child and their caregiver. Psychologist Mary Ainsworth then derived observable profiles from it through an experimental procedure that has become a classic.
The extension to adult romantic relationships dates from the late 1980s, with the work of Cindy Hazan and Phillip Shaver, who showed that the dynamics described in children are found again in the way adults experience romantic closeness.
The three main tendencies
Secure attachment. Closeness is comfortable, and so is autonomy. Needs are stated directly, without roundabout strategies. Faced with a conflict, the person can be upset without feeling that the very existence of the bond is threatened.
Anxious attachment. The bond feels fragile, so it must be checked. A silence is read as withdrawal, a short reply as a sign. The need for reassurance is real, but it is often expressed through means that produce the opposite: insistence, reproach, testing.
Avoidant attachment. Intense closeness is experienced as a risk of losing one's autonomy. The strategy is distance: minimizing the problem, changing the subject, suddenly having a lot to do. This is not indifference — physiological measurements often show significant tension beneath a detached appearance.
The anxious-avoidant script
This is the most described configuration, because it sustains itself with disconcerting regularity.
An incident occurs. The anxious person needs reassurance and moves closer. The avoidant person, feeling invaded, pulls back. The pulling back confirms exactly what the first one feared, so they insist. The insistence confirms exactly what the second one feared, so they pull back further.
Each applies the strategy that feels most protective, and each triggers precisely what the other dreads. Nobody is wrong, and yet the loop keeps turning.
The way out is not to convince the other that they are exaggerating, but to name the mechanism when it starts — which requires having identified it calmly, once and for all.
Duoly, the couples appThe daily appointment that puts the conversation back at the center.What concretely helps
Name the need rather than the reproach. "I need reassurance" can be heard; "you don't care at all" triggers a defense.
Announce the withdrawal instead of enduring it. For the avoidant person, saying "I need twenty minutes, then I'll be back" changes everything: distance becomes an announced regulation rather than an abandonment.
Make reassurance predictable. This is the most counter-intuitive point: what durably soothes an attachment worry is not an occasional grand declaration, but regularity. A daily appointment, even a brief one, works better than a long conversation every two months.
Emotionally focused therapy approaches, developed notably by psychologist Sue Johnson, work precisely on these loops: identifying the cycle, then expressing the need it conceals.
That is also the logic of Duoly: a daily appointment, short and expected, rather than a big episodic catch-up.
An attachment style is not a sentence
This is the most important message, and the one most often lost when these categories circulate on social media as personality labels.
Research shows that attachment style evolves over the relationships one lives: a durably reliable relationship can move someone toward more security. A style does not explain everything about a person, and excuses nothing — knowing you are avoidant does not exempt you from coming back to the conversation.