Yeah, their names are kind of perfect lol. I didn't even notice that until you pointed it out. 

Let's see, for the Carla thing: Alden is going to spend a vast majority, if not all of his time, in the woods. I don't imagine him wandering about the general public when he's got a hunter on his tail. Maybe we can have him venture out in a moment of rebellion though. 

As for Hale and Hazel: I'm not sure. I was thinking that Hazel comes from a long line of Guardians that dates back to the beginning of time; maybe your hunter does too, but that's up to you. Anyway, I was thinking that Hazel inhabits a protected reservation at the edge of town. Hazel and Hale would have an agreement that he is forbidden to hunt within the bounds of her forest. I'm guessing that Hale would go along with it because most of the creatures in her forest are benign. 

Which brings me to another point: Why is Hale after Alden? I was thinking that there's a blood-feud going that has been going on between their families for generations. Alden's family has long since atoned for it, but Hale still believes them to be dangerous--though Alden most certainly won't be. 

That's just kind of a regurgitation of what's in my head, feel free to pick it apart.