The Unfaithful Self: Identity Multiplicity and the Strain on Commitment in Late Modernity

Note to the Reader

This essay examines unfaithfulness not as a discrete moral failure but as a structural expression of identity transformation in late modernity. Drawing on sociological, philosophical, and empirical research, it argues that contemporary conditions produce a plural, continuously negotiated self that destabilizes the expectation of lifelong singular commitment. The essay reframes infidelity as a site where the tension between multiplicity and coherence becomes visible while preserving the ethical seriousness of fidelity as an ongoing, deliberate practice.


The Unfaithful Self: Identity Multiplicity and the Strain on Commitment in Late Modernity

Carl Jean (CJ)

Unfaithfulness has long been narrated as rupture—a violation of trust, a moral failure, or a lapse in discipline that fractures relational continuity. Such interpretations rely on the assumption that the self who makes a promise remains sufficiently stable to sustain it over time. Yet this assumption becomes increasingly untenable under conditions in which identity is experienced as reflexive, fluid, and continuously reconstructed. The modern subject is not a fixed entity but an ongoing project, shaped through shifting contexts and self-interpretations, making continuity less a given than an achievement. Within this framework, unfaithfulness can be understood not merely as ethical deviation but as a point at which tensions within identity itself become visible (; Giddens; Foucault).

Historically, commitment was stabilized not by internal psychological coherence but by external social structure. Marriage operated as an institution that organized economic relations, social roles, and identity itself, limiting ambiguity and constraining alternative selves. This structural limitation produced continuity by reducing choice, embedding individuals within systems that required maintenance rather than reinvention. With the transition to late modernity, however, processes of individualization dismantle these constraints, requiring individuals to construct identity through ongoing decisions rather than inherit it from stable frameworks. The burden of coherence shifts from structure to the individual, increasing both freedom and instability (Beck; Giddens; Bauman).

This transformation produces a form of subjectivity characterized by multiplicity. Individuals now occupy multiple roles across professional, personal, and digital domains, each requiring different performances of selfhood. Identity becomes distributed rather than centralized, constructed through interaction rather than fixed essence. Philosophical accounts of subject formation emphasize that the self emerges through practices and relations, rather than existing prior to them, reinforcing the idea that continuity must be actively produced rather than assumed. Under these conditions, the expectation that a single, unified self can sustain lifelong commitment becomes increasingly difficult to maintain (Foucault; Gergen).

Within this condition of multiplicity, commitment becomes structurally strained. Marriage and long-term partnership continue to presuppose stability and permanence, yet they are inhabited by subjects who experience themselves as evolving and contingent. This produces a persistent tension between the singularity demanded by commitment and the plurality experienced by the self. Individuals become aware not only of the life they are living but of the lives they might have lived, an awareness intensified by cultural narratives and social comparison. Commitment is therefore experienced not only as choice but as exclusion, as the narrowing of identity in the presence of expanding possibility (Bauman; Illouz).

Unfaithfulness emerges within this tension not simply as desire for another person but as an encounter with unrealized identity. The appeal of the other lies in the temporary coherence of an alternative self, offering a space in which different possibilities can be explored. Desire becomes a medium through which individuals engage with their own multiplicity, transforming infidelity into a phenomenon that reflects not only relational dissatisfaction but existential uncertainty. The experience of attraction becomes inseparable from the experience of possibility, linking emotional life to broader structural conditions (Illouz; Bauman).

The expansion of possibility is further intensified by networked forms of sociality that increase exposure to alternative lives and relationships. The proliferation of weak ties expands the range of potential connections, rendering alternative identities more visible and accessible. This networked condition reshapes perception, making commitment appear as one choice among many rather than as a defining structure. As a result, individuals must sustain relationships within an environment saturated with alternatives, amplifying the tension between stability and possibility (Granovetter; Turkle).

At the same time, empirical research suggests that romantic attachment is influenced by biological systems that operate independently of social expectations. Neurobiological studies indicate that attraction, attachment, and bonding involve distinct but interacting systems, complicating the assumption that desire can be fully contained within a single relationship. The persistence of attraction beyond commitment is therefore not solely a moral or social issue but reflects underlying biological dynamics that intersect with cultural conditions, further destabilizing expectations of exclusivity (Fisher; Fromm).

Despite these structural and biological pressures, the ethical dimension of unfaithfulness remains irreducible. To interpret infidelity solely as a structural outcome risks dissolving responsibility into explanation, obscuring the real harm it produces. Commitment remains a meaningful and demanding practice, requiring intentionality and discipline. Love, in this sense, must be understood not as a passive state but as an active process of sustaining connection through effort and restraint, even in the presence of competing desires and possibilities (Fromm; Giddens).

The contemporary condition of intimacy is therefore defined by a tension between multiplicity and coherence. Identity has become more fluid, more reflexive, and more exposed to alternative possibilities, yet commitment remains one of the few means through which continuity can be constructed. To remain within a relationship is not merely to adhere to a norm but to actively produce coherence in a context that does not guarantee it. Fidelity becomes a practice rather than a state, requiring continuous reaffirmation rather than passive endurance (Bauman; Illouz).

Conclusion

Unfaithfulness unsettles because it reveals a disjunction between permanence and transformation. The modern self evolves across time, accumulating possibilities that cannot all be realized, while commitment continues to demand continuity and singularity. This tension cannot be resolved, only navigated. Fidelity persists not as a static condition but as an ongoing act of decision, a deliberate effort to maintain coherence within a plural and shifting identity.


Related Reading:
Navigating the conflicts within ourselves requires a specific kind of attention. Explore this in The Intelligence of Care: On How We Resist Collapse.


Works Cited

Bauman, Zygmunt. Liquid Love. Polity, 2003.
      https://www.politybooks.com/bookdetail?book_slug=liquid-love--9780745624890

Beck, Ulrich. Risk Society. Polity, 1992.
      https://www.politybooks.com/bookdetail?book_slug=risk-society--9780745606650

Fisher, Helen. “Romantic Love: A Mammalian Brain System.” American Journal of Physical Anthropology.
      https://www.jstor.org/stable/10.1086/204584

Foucault, Michel. “Technologies of the Self.” Ethics: Subjectivity and Truth, 1997.
      https://www.jstor.org/stable/2938158

Fromm, Erich. The Art of Loving. Harper, 1956.
      https://www.harpercollins.com/products/the-art-of-loving-erich-fromm

Gergen, Kenneth J. “The Challenge of Absent Presence.” Perpetual Contact, 2002.
      https://www.jstor.org/stable/10.7208/chicago/9780226922026.003.0002

Giddens, Anthony. The Transformation of Intimacy. Stanford UP, 1992.
      https://www.sup.org/books/title/?id=2666

Granovetter, Mark S. “The Strength of Weak Ties.” American Journal of Sociology, 1973.
      https://www.jstor.org/stable/2776392

Illouz, Eva. Why Love Hurts. Polity, 2007.
      https://www.politybooks.com/bookdetail?book_slug=why-love-hurts--9780745676721

Turkle, Sherry. Alone Together. Basic Books, 2011.
      https://www.basicbooks.com/titles/sherry-turkle/alone-together/9780465093656/

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