What is ‘Puffer-Fishing’? The relationship trend is linked to fear of emotional intimacy

A growing relationship term gaining attention online is “puffer-fishing,” a behavioural pattern in which a person begins to emotionally withdraw when a relationship starts becoming serious, intimate or emotionally meaningful.

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What is puffer-fishing?

The concept describes individuals who distance themselves, become avoidant, start ghosting, or even abruptly end relationships once deeper emotional connections begin to develop. The term draws inspiration from the puffer fish, which inflates itself into a prickly ball when it senses danger. Similarly, people exhibiting puffer-fishing behaviour create emotional distance as a defence mechanism against what they perceive as a threat.

The idea was popularised by therapist and author Kati Morton in her book ‘Why Do I Keep Doing This?’ Morton has shared that she first encountered the term in her twenties through her own therapist after repeatedly ending short-lived relationships. According to her, the behaviour may stem from a deeper fear of vulnerability and emotional intimacy rather than a lack of interest in a partner.

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What causes this, and how to avoid it?

Experts note that puffer-fishing can become harmful to a relationship when emotional withdrawal is frequent, communication disappears, and one partner is left feeling anxious or confused. However, they also point out that many people who pull away are not necessarily indifferent; instead, they may be feeling overwhelmed by the emotional demands of closeness.

Mental health professionals suggest that recognising the triggers behind avoidant behaviour is the first step toward change. Learning to tolerate discomfort, embracing vulnerability and communicating feelings openly can help individuals avoid withdrawing when relationships become more serious.

According to experts, developing healthier relationship patterns often requires self-awareness, accountability and a strong relationship with oneself. Therapy can also play an important role in helping individuals understand their fears and build more secure emotional connections.

As conversations around modern dating continue to evolve, puffer-fishing highlights how fear of intimacy can sometimes stand in the way of meaningful relationships—and how understanding those fears may be key to overcoming them.