The idea of “best friend” seems a modern construct, linked to the affective language of contemporary adolescence; however, it has deep roots in anthropological structures. In archaic tribes, alliances between two individuals, often of the same sex, were not only sources of emotional support but also survival strategies of mutual fidelity within a community where danger, isolation, and betrayal could mean death. Friendship was a form of covenant, often sacralized through rituals of “blood brotherhood” or symbolic exchanges of objects.
This affective exclusivity continued to be valued even in classical times: the Greeks speak of philia as a form of high love, opposed to the irrational passion of eros. In the Middle Ages, knights swore allegiance to each other in terms that describe a love rather than a simple friendship. In the Romantic era, diaries abound with descriptions of almost mystical bonds between same-sex friends, not yet filtered by modern suspicion of the boundaries between friendship and desire.
So, what we call today “best friend” is a relic of these archaic bonds, culturally transformed into various forms, but still carrying within itself the deep need for loyalty, absolute trust, and to be uniquely chosen by someone in a world of interchangeability and social media. This mutual, total choice was once a gesture of survival, and today, it has become a rare form of spiritual intimacy, increasingly difficult to achieve in a society that confuses closeness with accessibility and constancy with frequency.
Behind this construct of “best friend”, there is an affective structure shaped by millennia of evolution of the human social brain. The human being, unlike other mammals, is not only looking for contact or belonging, but also for affective exclusivity: that “you and I against the world” that gives coherence to an otherwise unstable world.
The attachment theory (Bowlby) shows that each individual needs, from the first months of life, a stable reference figure, emotionally available, who ensures the feeling of internal security and thus, survival. Adult friendship, especially in its idealized form of best friendship, is a symbolic reactivation of this original need: we do not want just a network of people we like, but a single person who chooses us and remains constant in this choice.
The desire to be “the best” for someone is the purest and most painful expression of the thirst for intimacy and affective security. In a world where everything can be replaced, from objects to partners, the existence of a relationship in which you are not only chosen but constantly re-elected, without merit, just because it is you, becomes a rare form of psychic salvation.
The discrepancy between the way women and men experience friendship is cultural, the result of socialization processes that begin early, imperceptibly. Girls are taught, from the first social interactions, to express, listen, and verbalize emotions, to look for connection in its declarative form. Boys are often oriented towards autonomy, competition, and solving tasks through action, not through confession.
Thus, for women, the language of friendship becomes the emotional language of closeness, and the title of “best friend” acquires an almost sacred charge: it also names a ritual of sharing, mirroring, and intimate belonging. On the other hand, men, even when they develop deep bonds, rarely formulate them in affective terms. The closeness is implicit, expressed through loyalty in action, not through the verbalization of exclusivity.
This difference in affective style is also supported by attachment theory: women present a more predominantly anxious attachment style, which implies a more intense search for confirmation and a “best” in their affective life. Men, on the other hand, tend towards an avoidant attachment, learning to regulate their emotions in a solitary way or non-confessional contexts. And so, “best friend” becomes for women a symbolic extension of the self, an emotional double, while “best friend”, for many men, remains a discreet ally, without a title, but not necessarily without depth.

Female friendships in childhood, adolescence, and youth are often intense, exclusivist, and deeply symbolic, an unconscious repetition of the mother-child relationship, but transposed into the register of apparent equality. They are built on a background of common vulnerability, affective mirroring, and promises of eternal loyalty.
In a world often perceived as hostile, the first “best friend” becomes the emotional fortress of the emerging identity. But it is precisely this intensity that becomes, paradoxically, the source of the fragility of these relationships. In a social context that validates the woman by what she reflects: beauty, success, and male approval, competition inevitably creeps in. Although rarely assumed head-on, it erodes the initial pact of friendship from within. There are tacit comparisons, subtle jealousies, fluctuating preferences, and the tension of external validation: who has a boyfriend, who is more desired, who is more admired?
Status changes, moving to another city, and differences in professional or emotional path destabilize the dynamics of friendship because they highlight inequalities that did not exist in childhood. Women who once shared everything end up avoiding each other because of uncomfortable silences or the shame of no longer being “equal”.
Male friendships, seen from the outside, can seem surprisingly poor in affective, undramatic, even impersonal expressions. And yet, it is precisely this apparent superficiality that often makes them more durable. Men do not say “I’m by your side”, but they do not hesitate to offer help when needed. Their friendships are often built around shared activities such as sports, work, and hobbies, which function as buffer media, allowing for closeness without the pressure of direct affective exposure.
Emotional conflict is avoided out of a specific type of culturally learned self-censorship: the idea that the expression of vulnerability threatens status or breaks the balance of camaraderie. In the absence of the need for permanent definition, they survive the transformations of time without being tested by each change of context. Loyalty is practiced, and silence is accepted.

Although innocent, the idea of “best friend” implies an affective hierarchy: someone is “the most”, and the others automatically become “less”. This type of classification becomes an extension of the need for exclusive belonging, but also a source of relational anxiety. Instead of offering security, “best friend” can become a conditional, fragile title, subject to change of context.
Paradoxically, this label can transform friendship into a form of emotional possession, a relationship in which the presence of the other becomes a claim, and its absence, a betrayal.
Moreover, this logic of hierarchy is intensified by digital culture, which has reconfigured friendship in terms of visibility and etiquette. Social networks propose a simulated version of intimacy: the number of “friends”, reactions, and private messages seems to replace the deep reality of a connection. In this framework, we confess our vulnerabilities through posts with a musical background, and we argue through subtle stories, all under the gaze of an audience. And in this effective show, the idea of “best friend” becomes a displayable, negotiable, sometimes strategic label.
Functional, active people, connected to hundreds of other human presences, can experience a deep affective void, an inability to feel truly seen and chosen. In a social space where reciprocity becomes rare, because everyone searches but few stop, real intimacy becomes difficult to imagine.
Loneliness is therefore no longer a simple lack of company, but a form of lucidity: you know how much you could love, how much you could give, and yet no connection seems to reach that level of resonance that deserves your entire presence.
Instead of affective exclusivity, we should learn the plurality of loyalties, to recognize that fragments of us can be mirrored in different people, in different forms and moments, without this meaning superficiality. Mature friendship is not the eternal covenant between two beings, but a fluid network of presences that silently and intermittently support our inner structure. Staying open means learning to love faithfully, but not exclusively, where life allows us a real encounter.


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