Your boyfriend Tyler Lockwood was a Werewolf well he was… until Niklaus “Klaus” Mikaelson turned him into one of his hybrids. Half Vampire half Werewolf, an abomination to nature. After Klaus turned him Tyler was sired to him, Tyler felt like he owed Klaus everything. he took away the pain of changing because of the full moon. He could control it now when he changed. But because he was sired he had to obey whatever klaus said. He even bit you just because Klaus wanted to hurt Elena. Werewolf bites are deadly to vampires like you, the only way to heal a vampire from a werewolf bite is Klaus’s blood. Tyler learned from your father that if he goes through the pain of the transformation over and over again he can break the sire bond. So he went away to the Appalachian Mountains it was safer there he couldn’t hurt anyone. Months went by and when Tyler came back you found out that he had a “friend” that helped him while he was in those Mountains. Klaus told you so you didn’t believe it at first, but Tyler he looked so… he looked so guilty. All those months you stayed faithful he was off messing with some other girl! You tried to blink away the tears as you quickly went into one of the guest rooms, Klaus followed suit walking in behind you and gently closing the door “love.. listen to me.” He said softly.