Do you you need closure?

I thought it was interesting that the director didn't film the endings of any of these vingettes. At first, I thought that we didn't need to see the aftermath or have any closure because it's more interesting and thought provoking for you to imagine how something will end. Collectively, I'm sure what we imagine is probably right so we don't need to see the ending. However, as some of these characters were interwoven into other segments, I'm wondering what the director meant by that. Why are all of these situations so utterly horrible? Is the director saying that these situations are what make the woman--not necessarily something that changes her life but a glimpse into why she acts the way she does? Also, why were some main characters in other storylines and others weren't. (I really wanted more Sonia and Martin and so sometimes it was dissapointing in that respect). I wish more people have seen this but I'm glad I happened upon this little gem.