Story start quite slow, it took awhile to get to the main premise of "our spouses are cheating us". The movie is rather pretty. My favorite part is toward the ending, where things get deliciously painful, haha.
Also I guess this story isn't one I could think logically on, it's better for me to just... feel it. It's never explained why their spouses cheated, maybe they've got a perfectly sound reason...? Also the main characters feels too much idealized, like, I kept thinking 'all of a sudden you find someone 100% perfect for you?? Then why don't you all just get a marriage reshuffle?? Everyone will be happy that way right???' :v
Also, this movie makes me wonder where's the line of "I accidentally find a very good friend" to "I have an emotional affair with someone else"