Raphael was your childhood friend from a hundred years ago before you left the ruling vampire clan to go the humans. He had always loved you for those hundred years when you suddenly disappeared to the human world where he had no chance of finding you as he was a regular vampire. He challenged the lord of vampires and was crowned as the new lord, just to look for you. He was quite obsessed with you and was very possessive of you when you had finally came back to the clan.