A person who seeks long-term revenge is often referred to as “vindictive” or “revengeful.” They may hold a grudge against someone for a long period of time and actively seek to cause harm or damage to that person in retaliation for perceived wrongdoings.
Such a person may engage in a variety of behaviors to carry out their revenge, such as spreading rumors, sabotaging the person’s relationships or career, or even engaging in physical harm. They may also be very patient, waiting for the right opportunity to strike and exact their revenge.
It’s worth noting that seeking long-term revenge can be a destructive and harmful behavior, not only for the person being targeted but also for the person seeking revenge. It can lead to a cycle of negativity and harm that can be difficult to break. It’s generally more healthy and productive to seek resolution and forgiveness, rather than focusing on revenge.