Did He Trick Me Into Making A Deal?

Seren didn't find anything odd about it. She was already married to Drayce and his dark side was him as well so it didn't matter if she was a wife or mate. 

"Furthermore, the mate bond is sacred and it cannot be broken. It is something that binds your souls together," Drayce added. 

Seren had never heard of something like this and it amazed her. "So Erebus and I are bound forever? When I married you, I became his mate as well?"

Drayce nodded. "Except for my mother, you are the only person in front of whom he wishes to show his presence."

A question emerged in her mind. "Your mother has left for two decades. Are you saying that ever since then, Erebus never showed up?"

"He did appear from time to time, but it's not for anyone but me. To protect me wherever there is something that is threatening me or something that angers me gravely."

"That means he shows up to protect you?"