I don't understand how Aaron's abandoned wife can be okay with his leaving her like he did. I know it's been 15 years or so, but he left her in the woods, with a bunch of strangers, fighting to stay alive. And she tells him, it's okay? Nope, sorry.
I think she just said it to get rid of him. I think the 11 year daughter was a lie or half-truth. I expect she was pregnant when he left her so she has a daughter/son from him... but she doesn't want him to know that.