Damn, I think Noah's just some spoiled brat who's taking advantage of his mother. Trying to act like the innocent one, when really, he's the bad one. Damn him. He should be payed back in double for the consequences. It's all he really deserves, in my opinion.
As for the wife getting over her grief for the dead daughter. Really, it's harder than that. It's pretty impossible for her to "forget" about it. She probably meant much too. More, because all she's left with is this problem causing son who only gives a burden to her. That makes life harder. I really feel sorry for Wendy. Sucks for her. :(