Week 19- Renata can go die in a hole (and probably will)

Last week I started reading “Big Little Lies” by Liane Moriarty. So far I'm really enjoying it, even if I've never experienced a lot of the stuff talked about in the book. I actually like how it's told from the point of view of moms. They're all in different situations, but all of them have some kind of flaw in their family. I'm not sure if you read this book, but basically this new mom, Jane, shows up and gets taken in by two of the other moms when she gets bullied by Renata, who is the holier-than-thou quote-unquote career mom who thinks she's better than everyone.
Jane is sweet, but there's definitely something going on that isn't explicitly said, and it fits right in with the rest of the book, since lots of things are hinted at without being said. I especially like how there are bits of transcripts thrown into the narrative talking about the death of a parent, but it's unclear who died or who killed them, if anyone. The thing I really want to know is what's going on with Jane and her son, Ziggy. She's clearly worried that he'll turn out like his father, but she won't say who the father is or what trait she thinks he'll have, but it seems to have something to do with violence, judging by her reactions after a girl accused him of choking her.
As for Madeline, she's hilarious, but her ex-husband kind of sucks. Not that she's handling it super well by being all passive aggressive in front of his kids from his new marriage, but he really had no reason to walk out on her, so maybe he deserves it.
But Celeste is really tugging at my heartstrings, because her situation is so real that it's sad. She loves her husband, but she's a victim of physical domestic abuse. It's sad because she knows it's wrong, but she loves him so much that she keeps making up excuses for him instead of leaving. You want to say that she's stupid for staying, but it's difficult for people to get out of that kind of relationship, because they usually just want to believe that people can change and get better. What's worse is that she knows he can’t, but she stays.
Mostly I just really hate Renata and want to know what she's doing to make her daughter lie about Ziggy choking her and why. Like, why do you hate the world so much, lady? Just chill. If you weren't so stuck up, maybe people wouldn't be mean back.
My guess as to who died is either a) one of Jane, Madeline, or Celeste or b) Renata, who sucks. As for who killed her, if you go with ‘a' died, then ‘b' killed her, and vice versa. I just don't know how it escalated into murder.
The one thing that throws me off is that it's set in Australia, but that it's never stated, so you have to pick up all of the little things and piece it together. I guess the author must be Australian, so she didn't feel the need to clarify. But it's super good regardless! I'll probably finish it soon, so be ready.