His Mute Wife's Goodbye Revenge by Winter

For five years, Nyelle loved a husband who never loved her back. Treated as nothing more than a substitute for the woman he truly wanted, she finally decides to walk away.
But before leaving, she starts a dangerous game from the shadows. Using a hidden identity, the mute wife begins blackmailing her own husband, uncovering secrets, exposing lies, and making him pay for every tear she shed.
What happens when the husband she wants to destroy becomes obsessed with the mysterious stranger on the other end of the phone?