The Forest Brims Over

It took me a minute to get into this, and I did, but I had a reoccurring problem with the idea that a woman is so upset she turns into a forest and much of the book is about how the men feel about it. Case in point, the first chapter is from the pov of the husband's editor. This so derails him that he starts cheating on his wife and ultimately has to change departments at the company. And I am left wondering: what about Rui?
The second chapter is from the pov of the woman cheating with the writer. The third about the new editor. Now the book picks up a bit because the new editor is young and female and she's asking the correct questions. There are also some big ideas introduced here about males and females and society.
Chapter 4. I don't want to talk about Chapter 4.
And then, finally, we get Rui in Chapter 5. Again, big philosophical questions are being brought up: what is love, what role do lovers need to play, etc. I mean, this should have been the whole book!
And then it ends and I'm not sure any lessons were learned and no one seems any happier- not that I needed a happy ending, I just wanted to see growth in these characters. I mean outside of developing foliage.
I was interested enough to keep reading, but I was left pretty unsatisfied.