I think he did end up having sex with Mommy. But what I don't get is it ends sounding like Hillary is new the "mommy". I didn't think that was possible.
Well, in the council meeting, Hillary says that if mommy were to give birth to a new queen, she wouldn't become one if she could still smell Mommy. That would certainly explain why Hillary never changed. In another conversation with Aggie, he asks her why she can't take the baby up to the surface herself. She says that when she's away from home for too long, she starts to change.
What I don't understand is, if Hillary new she had the potential to be a queen; why didn't she leave home and start over somewhere else? I realize that leaving home would be easier said than done, but I would have thought that Hillary of all people would have figured out a way.
As for Alder, I think all he meant was that Brian was on their side. I certainly don't remember Brian getting that warm feeling in his chest when he was around them.