Many dating trends go viral because they give a name to behaviours that many people have experienced privately but struggled to express. One term that has recently exploded online is puffer-fishing, which is a pattern where someone appears emotionally invested at first, but then begins to withdraw as a relationship gets emotionally serious or vulnerable. The term draws inspiration from the defensive behaviour of a pufferfish, which inflates to create distance when it senses danger.
The concept was popularised by Kati Morton, a licensed marriage and family therapist and author of 'Why Do I Keep Doing This?', as per Self.com.She learned the concept back in her 20s from her own therapist. After yet another short-lived relationship ended with Morton calling it quits, her therapist pointed out that this cycle was probably a result of Morton being afraid of vulnerability. "She said, 'You're a puffer fish. If somebody gets too close and you start to feel vulnerable, you stick your spines out instead of communicating,'" Morton shared as per Self.
What Puffer-fishing looks like
Puffer-fishing can show up differently depending on the individual, but it's most likely going to look like avoidance.For Morton, puffer-fishing began with romantic relationships, but it's a behaviour that could also appear in friendships or familial relationships.
Morton says in her life, puffer-fishing manifests as ghosting or wanting to cut off communication as quickly as possible. But it might also look like being combative with someone. For example, from always picking a fight when things get serious to self-sabotage the relationship.This behaviour can sometimes look confusing because the person may initially seem affectionate, emotionally available, and deeply interested before suddenly becoming distant, avoidant, or emotionally withdrawn. They may text consistently for weeks, share personal stories, and seem fully invested - then suddenly go silent, become cold, or create conflict when things start to feel real.Why somebody acts like a Puffer fish
Most people can oscillate between the main three attachment styles, mainly secure, avoidant, and anxious. But they often tend to demonstrate one more than the others, as per psychology. Avoidant attachment is closely related to puffer-fishing.
This is a common pattern for avoidants, who tend to flee once a relationship progresses.This is often rooted in a fear of commitment and abandonment. Avoidants do want love, but they are afraid to lose themselves or get hurt. It’s a protective mechanism rather than a purposefully damaging behaviour.
Not always easy, especially if you grew up feeling that your feelings were “too much.” You may fear being vulnerable, being misunderstood or judged, or you may want to be seen as independent and secure. Either way, you can only run so far from yourself before you leave everyone else behind, too.
How to get over Puffer-fishing tendencies
1. The first step is recognising that you're doing it.When you notice yourself wanting to pull away, ghost, or create conflict when things get serious, pause and ask yourself why.
2. Instead of cutting off communication, try staying present.Share what you're feeling. Say, "I'm scared of getting too close," instead of disappearing. This might feel uncomfortable, but it's the only way to build real connection.
What to do if you're dacting a Puffer fish
If you're the one dating someone who puffer-fishes, recognise that their behaviour isn't about you.It's about their fear. You can't force someone to be vulnerable.You can only set boundaries and decide what you're willing to accept.
Healthier Alternatives to Puffer-fishing
Puffer-fishing might seem appealing in some contexts. It certainly protects you from heartbreak… but only at the cost of genuine connections.You can't build a lasting relationship with someone you view as a threat. And with puffer-fishing, you villainize anyone who gets too close.
It takes true strength and confidence to own your vulnerabilities and allow someone to love you as you are.Real intimacy requires risk. It requires staying when you want to leave, speaking when you want to hide, and trusting that being seen doesn't mean being destroyed.
Puffer-fishing protects you from pain, but it also protects you from love. And that's the real cost.