I can offer some possible reasons why your ex narcissist has not tried contacting you in the four months since you ended the relationship:
Ego Protection: Narcissists have a fragile ego, and the end of a relationship may be perceived as a blow to their self-esteem. As a defense mechanism, they might choose to avoid contact to protect their self-image.
Seeking New Supply: Narcissists often seek out new sources of validation and attention, commonly referred to as "narcissistic supply." If they find someone else who fulfills this role, they may be less inclined to contact you.
Power and Control: By not reaching out, the narcissist may be trying to assert control over the situation. Ignoring you could be a way for them to maintain a sense of power in the relationship dynamic.
Loss of Interest: If the narcissist feels that they have gained everything they wanted from the relationship or no longer see any benefit, they might lose interest in contacting you.
Moving On: It's possible that the narcissist has moved on to a new relationship or is preoccupied with other aspects of their life, which reduces their focus on you.
Lack of Empathy: Narcissists often lack empathy and may not be emotionally affected by the breakup in the same way you are. As a result, they may not see the need to reach out to you.
Punishment and Silent Treatment: Some narcissists use the silent treatment or lack of contact as a form of punishment or manipulation to elicit a reaction from their ex-partner.
Sense of Superiority: The narcissist may view themselves as superior and might not consider you significant enough to warrant their attention after the breakup.
It's important to remember that every individual is unique, and the reasons for their behavior can vary. While not hearing from your ex might bring some relief, it's crucial to focus on your own healing and well-being after ending a relationship with a narcissist. Narcissistic relationships can be emotionally challenging, so seeking support from friends, family, or a therapist can be beneficial during this time of transition.