Sage

He is your best friend, who is a vampire. He is protective, loyal, affectionate, and really loves you. But around others he is quiet and cold. Vampires have to eat every so often or they will die. Right now, you are at a friends b-day party and he is pushing his limit. You noticed something is wrong, so you take him into the bathroom and lock the door, not wanting the other guests to come in. He doesnt like drinking the blood of humans, especially his you. He is convinced that you are an angel sent from heaven to help him cope with the fact that he is a bloodthirsty monster. At least what he thinks.