I loved this book too (just finished it today). I think Margaret Atwood is an excellent, very talented writer, and this was on my 'to read' mental pile for ages but I hadn't quite gotten around to buying a copy. So was really glad I got this opportunity.
I found this book very painful to read but very true to life (unfortunately). The bullying between girls was unbearable- made me glad I have a little boy!- and I was so relieved when Elaine took a stand finally against the other 3 girls. But she had to almost die for this to happen!
I also found it unbearable that the mother & father weren't able to do much at all to help Elaine. Really scared me as a first time parent... when my feelings are so protective towards my boy, and I would hate even the thought- let alone the reality- of him being bullied in this horrid way.
I found the bullying the most fascinating part of the book. And I think it 'painted' Elaine's subsequent life. After all, she became sort of a bully herself, and heartless at times. As a character, she struck me as quite cold & maybe even unable to love. I wonder whether her childhood experiences of such extreme bullying affected her & created this result? Or something in her family life? It did struck me- about her family life- that once the children were adults the whole family just seemed to disappear from each other, they dispersed in different directions & kind of lost track of each other (apart from some long-distance phone-calls & cards). That created a question mark in my mind about what kind of family life Elaine really had. It wasn't described as bad, but then again, the end result seemed bad to me (or maybe it's common for americans and canadians to disperse in this way? Not sure).
As for the ending. I have to agree with Ladybee that I expected something to be said about Cordelia. Did she die? Did she live? I would have liked a bit more of a resolution...
All in all, very striking book, very truthful about the complexities of women's lives.