Seeking revenge or attempting to "screw over" someone, even if they have hurt you in the past, is not a healthy or productive way to handle any situation.
Engaging in such actions may perpetuate a cycle of negativity and harm, and it can have legal and moral consequences. It is essential to focus on your own healing and well-being rather than seeking to harm others, even if they are narcissists or have mistreated you.
If you have been in a relationship with a narcissist or experienced emotional abuse, the best course of action is to prioritize your own healing, safety, and personal growth. Seek support from friends, family, or professionals, and focus on building a healthy and fulfilling life for yourself. Engaging in positive activities, setting boundaries, and practicing self-care are much more constructive ways to navigate the aftermath of a toxic relationship.
If you are struggling to cope with the effects of a relationship with a narcissist, consider speaking with a therapist or counselor who specializes in trauma, abuse, or relationship issues. They can provide you with the support and guidance needed to heal and move forward in a healthy way.