Whether your ex-partner, who displayed narcissistic traits, will come back into your life after getting engaged is uncertain and depends on many factors.
People's behaviors and choices can be complex, and there is no one-size-fits-all answer. Some narcissists may attempt to return to previous relationships for various reasons, such as seeking validation or control. However, others might move on and focus on their new relationship without looking back.
It's essential to remember that engaging with someone who has displayed narcissistic traits can be emotionally challenging and potentially harmful. It may be more beneficial to focus on your own well-being and personal growth instead of waiting for someone who may not be the best fit for a healthy and supportive relationship.
If you find it challenging to cope with your emotions or need support in moving forward, consider reaching out to a therapist or counselor who can provide guidance and help you navigate through this situation in a healthy way.