I think Maddie feels that she is unworthy of Ed and sabotages it. I think she's waiting for him to leave and does things to push that. I'm not defending such self destructive behavior, but I don't think the problem is that she doesn't love him. I think she loves him deeply and doesn't trust it.
I think Celeste is just taking Ambien but I don't think I'd take it a second time after what happened the first time. And still, the person who was at fault in this, is the bartender. Who doesn't hide in the bedroom when he hears major awkward going down? Not cool bartender, not cool at all.
If I was Jane I wouldn't let my kids in the car with Celeste lest she be having one of her Ambien episodes, but I also would be very, very, very wary that Mary Louise was coming after Ziggy next.
Is it because of the ostentatious of the house and car? I thought in bankruptcy you got to keep a house and a car.