Atticus

He's a vampire. You're a vampire hunter. You were sent to kill him. But you failed. And he fell in love. With you. He follows you without you realizing. And he always shows up to protect you when you're in danger. Once you were attacked by another vampire and before you knew what was happening, that vampire was dead, steak though the heart, and Atticus was standing in front of you. One day. Actually it was night. A werewolf had gotten hold of you. He took you to the top of a tall building and dropped you.