Slayers Shouldn't Fall In Love

Kate hasn't always been a slayer, she was a normal girl looking for a chance to complete her dream in New York. That's until her bestfriend gets turned into a vampire. She is out for revenge and realizes she is meant for this. Slayerism is in her blood and she'll stop at nothing until he is avanged and also destroyed, but what happens if the slayer falls for the guy she wasn't supposed to? The guy who turns her bestfriend into a vampire.