Limerence: When Longing Becomes a Nervous System Loop

Claire* had never found a word for what she was experiencing. More than 10 years after a painful breakup, she remained caught in a romantic obsession she could not explain. Although she and her former partner had not spoken since, the intensity of her longing had never fully faded.

She felt embarrassed by it. She knew her feelings were far beyond what most people would consider normal. Yet she continued to revisit the relationship in her mind, replaying conversations, imagining alternate endings, and soothing herself with fantasies of reunion. She romanticised the connection and held onto a quiet conviction that they were meant to be together, despite knowing he had moved on, married, and built a life entirely separate from hers.

In the decade that followed, Claire struggled to form new relationships and had few close friendships. The isolation made the fantasy even more compelling. The imagined relationship became a refuge — predictable, intense, and comforting in ways her real life was not. She recognised that the pull felt addictive, but she didn’t know how to interrupt it. The fantasy felt safer than risking new connections, and in many ways, safer than confronting the loneliness beneath it.

Eventually, Claire confided in a close friend that seeing a recent photo of her former partner on social media had triggered a wave of emotion she could no longer contain. She broke down in tears as she tried to explain the depth of her grief. She knew it was startling to still feel so affected by a relationship that had ended so long ago, but the pain was real. She described it as worse than losing a spouse to death because, unlike death, she had to witness him build a life with someone else, have a child, and continue on without her.

Her family and friends had largely dismissed her sadness over the years, leaving her feeling disenfranchised and ashamed. Because he was still alive, she felt she had no right to grieve. Unlike her widowed friend, she had no socially recognised script for her loss. The secrecy compounded her distress, and she had bottled it up for years. Yet after finally speaking the truth aloud, she felt something shift: a sense of release, as though the longing had loosened its grip.

Claire’s experience is not unusual. It has a name: limerence.

Limerence is an intense, involuntary, and often intrusive romantic fixation on another person (Tennov, 1979). It can be demonstrated through:

• Persistent, intrusive thoughts
• Idealisation of the other person
• Emotional dependency on perceived reciprocation
• Fantasy-based reinforcement
• Heightened physiological arousal
• Difficulty moving on, even after long periods
• Longing that persists despite clear unavailability

Unlike typical infatuation, limerence is sustained by imagination, uncertainty, and unmet emotional needs. It is not a diagnosis or disorder; it is a pattern of emotional and neurobiological activation that can significantly impact wellbeing, relationships, and daily functioning (Tennov, 1979; Fisher, 2004).

It can also be more intense –or appear more commonly –in people with anxiety, depression, ADHD (particularly where hyperfocus is prominent), and borderline personality traits, where emotional sensitivity, rumination, and attachment insecurity may amplify the experience (Pine & LeDoux, 2017; Levine & Heller, 2010).

For many clients, limerence becomes a private emotional world –vivid, consuming, and more compelling than real relationships. The limerent individual searches for signs of interest from the limerent object (LO), imagines romantic outcomes, and becomes increasingly dependent on the emotional highs of fantasy.

Limerence is characterised by persistent, intrusive thoughts and the idealisation of another person that can verge on obsession. The focus narrows to one often-unobtainable person, accompanied by heightened arousal and longing despite clear evidence of the other person’s unavailability. The client cannot simply decide to stop being limerent; the experience is involuntary, reinforcing the need for compassion and realistic therapeutic support (Tennov, 1979; Fisher et al., 2006).

Limerence is often described as an “addiction to a person,” but more accurately, it is an addiction to a dopamine-driven fantasy loop (Fisher, 2004; Fisher et al., 2006).

The brain releases dopamine in anticipation of reward. In limerence, the “reward” is imagined: a message, reunion, or fantasy of being chosen. Uncertainty fuels the loop and intensifies craving, helping explain why limerence can resemble obsessive-compulsive patterns in its persistence and intrusiveness (Fisher, 2004; Fisher et al., 2006; Panksepp, 1998).

The LO can begin to function like an attachment figure in the brain. Research (Fisher et al., 2006; Acevedo et al., 2012) on romantic love and separation shows overlap between reward circuitry and regions involved in social pain, emotional salience, and threat detection, including the anterior cingulate cortex, insula, and amygdala. In this sense, the brain may respond to the LO less like a simple crush and more like an attachment bond under threat.

If the original relationship included mixed signals, inconsistent affection, or emotional highs and lows, the nervous system can become conditioned to chase the next “hit ”. Intermittent reinforcement strengthens attachment, and the pattern can persist long after the relationship itself has ended.

The limerent object (LO) becomes the dopamine source, the soothing fantasy, the predictable emotional regulator, and the object of hyperfocus.

Some clients may be more vulnerable to limerence because of disorganised attachment patterns, ADHD, autism, AuDHD, high sensitivity, or heightened rejection sensitivity, all of which can intensify emotional processing and make relational uncertainty harder to regulate.

For neurodivergent clients, the fantasy can become neurologically sticky – difficult to interrupt and deeply felt. ADHD, in particular, can involve hyperfocus and emotional intensity that may deepen romantic preoccupation.

Limerence can also be understood as an attempt to resolve old relational pain through a new idealised bond. The romantic fantasy provides comfort and predictability and can soothe early attachment wounds. The limerent is often not only longing for the person, but for the felt sense of security and emotional certainty they hope the person will provide. This helps explain why inconsistency can intensify rather than weaken the attachment: intermittent closeness reactivates early attachment needs and keeps the nervous system searching for repair, even when the relationship is objectively unavailable (Bowlby, 1988; Hazan & Shaver, 1987; Levine & Heller, 2010).

When someone lacks secure attachment, close friendships, or emotional support. The imagined relationship can regulate emotion more effectively than the client’s real environment. It heightens arousal and offers an escape from real-world intimacy (Bowlby, 1988; Hazan & Shaver, 1987).

Although limerence is not formally classified as an addiction, many clients describe it in addiction-based language: craving, withdrawal, relapse, triggers, and feeling “hooked” on the emotional intensity. An addiction-informed lens can help counsellors recognise these patterns and support alternative regulation strategies.

Both limerence and love addiction involve intrusive thoughts, compulsive fantasising, dopamine-driven reward processes, and withdrawal-like symptoms. Love addiction is typically a pattern repeated across multiple relationships, whereas limerence is often a long-term fixation on one person sustained by fantasy. It can last for years, and sometimes even decades.

Using the term “love addiction” can be validating, but counsellors must avoid pathologising normal human longing. A balanced approach acknowledges both the compulsive quality of limerence and its attachment-based roots (Hazan & Shaver, 1987; Bowlby, 1988; Levine & Heller, 2010).

Normalise without minimising, as validation reduces shame and opens space for exploration. Clients need to hear that limerence is a human response to unmet needs, not a personal failing (Tennov, 1979; Baumeister & Leary, 1995).

It can also be useful to explore the function of the fantasy. Counsellors can gently ask, “What does this fantasy give you that feels missing in your life?” Often, the answer points to unmet needs for connection, belonging, identity, or emotional safety.

Focus on strengthening internal and external resources. To reduce loneliness, practitioners can help clients build friendships, explore new relationships, reconnect with identity, and develop alternative self-soothing strategies (Baumeister & Leary, 1995; Bowlby, 1988).

It is crucial to build self-worth outside the LO. Recovery includes helping clients build a sense of self-esteem that exists independently of the limerent object (LO), so identity, value, and hope are no longer tied to being chosen by that person (Levine & Heller, 2010; Bowlby, 1988).

Finally, work with grief and shame. Clients often need to grieve not only the person, but also the fantasy, the imagined future, the emotional intensity, and the version of themselves they inhabited within that fantasy. Shame can keep limerence alive; compassion helps loosen its hold.

Claire’s story highlights a rarely discussed dimension of limerence: grief that cannot be publicly acknowledged, leaving the limerent invalidated (Wright, 2011).

Clients often feel ashamed of their sadness and invalidated when others minimise the loss or compare it unfavourably with more recognised forms of bereavement.

Because the LO is alive and often thriving, the client may feel they have no right to grieve. This disenfranchised grief intensifies the emotional loop and deepens isolation (Wright, 2011; Worden, 2009).

When clients finally speak their truth, the relief can be profound. Naming the grief allows the emotional system to settle and the fantasy loses some of its power.

Limerence sits at the intersection of longing, neurobiology, attachment, and imagination. It is a deeply human response to unmet emotional needs, uncertainty, and the desire to feel chosen. For clients like Claire, the fantasy becomes a refuge — a place where the nervous system finds intensity, comfort, and predictability.

When counsellors understand limerence, they are better able to support clients in moving from shame toward insight, from fantasy toward grounded connection, and from repetitive emotional looping toward regulation and authentic connection.

*Name has been changed for privacy.

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Levine, A., & Heller, R. (2010). Attached: The new science of adult attachment and how it can help you find—and keep—love. Jeremy P. Tarcher.

Panksepp, J. (1998). Affective neuroscience: The foundations of human and animal emotions. Oxford University Press.

Pine, D. S., & LeDoux, J. E. (2017). Elevated threat sensitivity in anxiety: A neuro-evolutionary perspective. Nature Reviews Neuroscience, 18(8), 489–498.

Tennov, D. (1979). Love and limerence: The experience of being in love. Stein and Day.

Worden, J. W. (2009). Grief counseling and grief therapy: A handbook for the mental health practitioner (4th ed.). Springer Publishing Company.

Wright, J. (2011). Disenfranchised grief and non-death losses. Journal of Loss and Trauma, 16(4), 291–298.

Tina Smith is a counsellor with a Diploma in Counselling, an Advanced Diploma in Naturopathy, and a Diploma in Case Management. Bringing 25 years of experience in retail and community service, her practice combines practical expertise with a holistic and client-centred approach to support and empower individuals.