I can offer some general insights that might help you understand the situation:
Idealization and Devaluation Cycle: Narcissists often follow a pattern of idealizing their new partners at the beginning of the relationship, showering them with love, affection, and attention. This intense phase is known as the idealization stage. Shortly after, they may move into the devaluation stage, where they may become critical, emotionally distant, or even discard the partner. This cycle can be rapid, and they may seek a new source of admiration and validation through a new partner, leading to a quick engagement.
Fear of Abandonment: Narcissists often have a deep-seated fear of abandonment. When they sense that their current relationship is coming to an end or when they feel rejected, they may rush into a new relationship or engagement to avoid being alone.
Need for External Validation: Narcissists crave constant validation and admiration from others. Getting engaged quickly might be a way for them to show off their new partner and receive attention and validation from friends and family.
Control and Power: Engaging in a new relationship, especially one that moves quickly, can be a way for a narcissist to exert control and power over their new partner. It allows them to set the pace and manipulate the dynamics of the relationship.
Avoiding Self-Reflection: Entering into a new relationship rapidly can be a way for narcissists to avoid confronting their own issues or facing the emotions surrounding the end of their previous relationship.
It's essential to remember that the behaviors and actions of a narcissistic individual are driven by their own complex internal processes and are not a reflection of your worth or value as a person. If you have experienced a relationship with a narcissist, it's crucial to focus on your own healing and well-being.
If you find that you're struggling to cope with the aftermath of the relationship or any emotions related to the engagement, consider seeking support from friends, family, or a mental health professional who can help you navigate through this challenging time.