“Narcissist” gets thrown around a lot. It can be the word we reach for to describe a self-absorbed colleague who dominates every meeting, a friend who always makes the conversation about themselves, or an ex who never seemed to consider your feelings. And sometimes, those descriptions aren’t wrong. Self-centred behaviour exists on a spectrum, and most of us will display narcissistic traits at points in our lives.
But true narcissism — Narcissistic Personality Disorder, or NPD, and its broader cluster of traits is something far more insidious. It’s not just someone who likes to talk about themselves. It’s a deeply ingrained pattern of behaviour that, when left unchecked, can cause serious and lasting psychological harm to the people closest to the narcissist: their partners, children, siblings, and friends.
Understanding what narcissism actually looks like and why it so often goes undetected is one of the most important things you can do if you suspect it might be playing a role in your life.
Narcissism in the Family
Growing up with a narcissistic parent or sibling is a particular kind of disorienting. The narcissistic family member is often charming, high-functioning, and well-regarded outside of the home, which makes what happens behind closed doors feel confusing and sometimes impossible to explain.
Within the family, a narcissistic parent may demand constant admiration, show little empathy for a child’s needs, play siblings against each other, or use guilt and emotional withdrawal as tools of control. Children raised in this environment often grow up questioning their own perceptions and can carry deep-rooted issues around self-worth, anxiety, and relationships well into adulthood.
The long-term psychological effects on family members can be significant: complex PTSD, chronic people-pleasing, difficulty trusting others, and a tendency to minimise one’s own needs are all common outcomes. These effects don’t disappear when the person leaves home; they often shape relationships and self-perception for years, sometimes decades.
Narcissism in Romantic Relationships and Friendships
Narcissistic relationships often begin with an intensity that feels thrilling. The narcissist can be magnetic, attentive, and deeply flattering in the early stages. It’s only once the relationship deepens that the pattern shifts.
In romantic relationships, this might look like a partner who is controlling, dismissive of your emotions, or quick to shift blame. In friendships, it can manifest as a one-sided dynamic where your needs are consistently sidelined, your achievements are subtly undermined, or you find yourself constantly managing their feelings at the expense of your own.
What makes both so difficult to navigate is the inconsistency. Narcissists are not always cold or cruel; they can be warm, funny, and generous. This unpredictability keeps people in the relationship, hoping the good version will return, and second-guessing whether the difficult experiences were really as bad as they felt.
Why It’s So Hard to See and So Hard to Leave
One of the most confounding aspects of narcissistic behaviour is how well hidden it can be from the outside world. Narcissists are, almost by definition, highly invested in how they are perceived. They often present as charismatic, generous, and likeable in public, the kind of person others find charming and impressive.
This creates an incredibly isolating dynamic for those on the receiving end of the behaviour. You might try to explain to a friend or family member what’s happening, only to be met with disbelief: “But they seem so lovely.” The gulf between the public persona and the private reality is often so wide that victims begin to doubt themselves, wondering if they are the problem, if they are being too sensitive, or if they are somehow imagining it.
This is not an accident. The narcissist’s need to be seen as good, capable, and admirable extends to how they manage their relationships. Abuse, whether emotional, psychological, or in some cases physical, happens behind closed doors. In public, they may be the first to compliment you, the one who seems so supportive, the person everyone assumes you are lucky to have.
This double life is exhausting for those living it, and makes it difficult to seek help or be believed. Over time, the self-doubt this creates, the constant questioning of your own memory and instincts, can cause serious damage to your mental health.
What to Do If There’s a Narcissist in Your Life
When reading this, if you relate, the first and most important thing to know is: you are not imagining it, and you are not alone. Recognising narcissistic behaviour for what it is rather than internalising it as a reflection of your own worth, is a significant and often difficult step.
Here are some places to start:
- Trust your experience. Gaslighting works by making you question your own perceptions. If something has consistently felt wrong, that feeling is worth taking seriously, regardless of how the other person behaves in front of others.
- Set boundaries — and pay attention to how they’re received. Narcissists tend to respond poorly to boundaries because boundaries challenge their sense of entitlement. How someone reacts when you assert a need tells you a great deal.
- Seek support outside the relationship. Isolation is a common feature of narcissistic dynamics. Reconnecting with trusted friends, family, or a support group can help restore your sense of reality and remind you that you deserve relationships built on mutual respect.
- Consider therapy. Working with a therapist who understands narcissistic abuse can be transformative. It provides a safe space to process what you’ve experienced, rebuild your self-trust, and develop strategies for protecting your wellbeing, whether you choose to stay in the relationship or leave. Pleso therapists are experienced in supporting people navigating exactly this kind of dynamic.
It’s worth noting that narcissism is rarely something that changes without significant, sustained therapeutic work on the part of the narcissist themselves and even then, change is uncommon. Understanding this is not about giving up hope, but about making clear-eyed decisions about what you can and cannot control.
What you can control is your own healing. And that, ultimately, is where the focus belongs.
