It is possible that a narcissist may become less focused on "hoovering" (i.e., attempting to draw you back into the relationship) if they have found a new supply that they are infatuated with or deeply interested in. Narcissists are known for seeking admiration, attention, and validation from others, and when they find a new source of supply that fulfills those needs, they may shift their attention away from their previous targets.
However, it's important to remember that narcissistic behavior is deeply ingrained and often not easily changed. The intensity of their new interest in someone else doesn't necessarily mean they have fundamentally changed as a person. They may continue to engage in manipulative or harmful behavior towards you if they feel the need for control or if their new supply does not meet their expectations.
It's also common for narcissists to cycle through multiple sources of supply, moving from one person to another in search of validation. If their new supply becomes less satisfying or challenging in any way, they may return to hoovering or attempting to re-engage with previous targets.
If you find yourself in this situation, it's crucial to prioritize your well-being and set healthy boundaries. Limiting or cutting off contact with the narcissist can be a necessary step in breaking free from the emotional hold they may have on you. Consider seeking support from friends, family, or a mental health professional who can help you navigate the challenges of dealing with a narcissistic individual and move forward in a healthy way.