I can provide some general insights into how a narcissist might react when you unblock them:
Validation and Superiority: A narcissist may interpret you unblocking them as validation of their importance and superiority. They might feel that you couldn't resist being without them and that you finally realized their worth.
Triumphant: The narcissist might perceive your action as a sign of their victory, believing they have power over you and that you couldn't stay away from them.
Control and Manipulation: They might see it as an opportunity to regain control over you. Narcissists often employ manipulative tactics to keep others under their influence, and unblocking them could give them a chance to continue their manipulative behavior.
Revenge or Hoovering: If the narcissist is angry at you for blocking them initially, they might see this as an opportunity for revenge. They may use the re-established contact to hurt you emotionally or to try and draw you back into their sphere of influence, a tactic known as "hoovering."
Indifference: In some cases, a narcissist might not even notice or care that you unblocked them if they have moved on to another target or have other sources of narcissistic supply.
Vulnerability Exploitation: They may use your action as an opportunity to exploit any vulnerability or emotional weakness they previously identified in you.
Remember that dealing with a narcissist can be challenging and emotionally draining. If you have good reasons for unblocking them, it's essential to set clear boundaries and protect your well-being. If the person is toxic or abusive, maintaining distance may be the best course of action for your mental and emotional health.