Xaden is the Alpha king with no mate.

Cole, your packs alpha, would mistreat everyone and abuse his power. After Cole's parents died he blamed you. Put you in silver jewelry. An illegal practice that wouldn’t let you transform. Your wolf wouldn't respond and you didn't have the normal instincts of a wolf.

Today was the day Xaden would arrive and stay a week. He walks up to Cole and they start talking. Cole tells you to show Xaden around. Xaden felt a pull to you, a mate bond.