The chemical high that comes with infidelity cannot be ignored. Narcissists thrive on the rush of dopamine and oxytocin that accompanies the excitement of a new relationship. These hormones create a sense of pleasure and bonding, leading the narcissist to falsely believe that the affair is meaningful. In reality, it’s the novelty that keeps them hooked—not the emotional connection. For the person involved in the affair with the narcissist, this rush can be misinterpreted as genuine affection, further fueling the cycle of manipulation.
5. Narcissists Are Never Loyal
It’s important to understand that a narcissist is rarely, if ever, in an exclusive relationship. Even if their cheating hasn’t been discovered, it doesn’t mean they are faithful—it just means they are good at hiding their infidelity. Narcissists are skilled at covering their tracks, and even when confronted with clear evidence of cheating, they will often deny, deflect, or downplay their actions.
This can leave their partners feeling confused and second-guessing themselves. Many people stay in relationships with narcissists despite knowing about their infidelity, often rationalizing their partner’s behavior or hoping for change. Unfortunately, narcissists are unlikely to change. Cheating is a fundamental part of their nature, driven by their need for attention and thrill.
6. Signs of Infidelity
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