I have no idea. I've stopped analyzing how me becoming some blood thirsty immortal is serving a purpose. It seems to be only in this area, but I don't know. It's the least of my problems at the moment.
Samandriel is either the guardian angel or devil on my shoulder, but it's unlikely that he will be hurt so he's a logical choice until I get control of it. He does have another motivation behind the offer.
No, they are not subtle at all. Nice treehouse, by the way.