Common narcissistic traits include self-importance grandiosity, self-indulgences that they imagine unlimited success and a belief that they are "special" and unique. They often require excessive admiration and have a sense of entitlement. These traits can be particularly damaging in sibling relationships.
Causing narcissistic injury means hurting a narcissist's ego or self-importance. Even the smallest mistake or criticism can cause this injury. When injured, a narcissist might ignore the person who caused the injury to protect their inflated self-image...
A cheating narcissist is an individual who possesses narcissistic traits and engages in infidelity. They often display an inflated sense of self-importance, poor impulse control, and use manipulation tactics to maintain relationships while pursuing other romantic or sexual interests.
The most dangerous type of narcissist is the Malignant Narcissist. They are often very charming and successful, but they also have a complete lack of remorse or empathy. They will do whatever it takes to get what they want, and they can be very dangerous.
Poor impulse control is a common trait among narcissists. This can manifest as a tendency to act on whims or desires without considering the potential consequences. In the context of a relationship, this may lead to infidelity if the narcissist is attracted to someone else.
A narcissistic sibling can destroy family relationships. Their need for narcissistic supply often leads them to create divisive family dynamics and foster sibling rivalry. This can result in other siblings feeling neglected or abused.