Yes, it is not uncommon for a narcissistic person to block someone on various communication channels and even change their phone number. Narcissists often exhibit behavior characterized by a lack of empathy, an excessive need for admiration, and a sense of entitlement. When they feel threatened, criticized, or rejected, they may react by cutting off contact and avoiding any further interactions with the person they perceive as a threat or who challenges their self-image.
Blocking and cutting off communication can be a defense mechanism for narcissists to protect their fragile self-esteem and avoid any criticism or confrontation. By blocking others, they can maintain control over their narrative and prevent any information that might challenge their self-perception from reaching them.
It is crucial to remember that dealing with someone who exhibits narcissistic traits can be challenging and emotionally draining. If you find yourself in such a situation, it's essential to prioritize your well-being and seek support from friends, family, or professional counselors who can help you navigate the situation and set healthy boundaries.