Psychoanalyze our society based on this movie

I'm certain a lot of people could relate to the initial scene where the couple is not honest with each other, though of course these two take it over the top with their unbelievable roles in life, and I gather that is supposed to be comic exaggeration. However, I could not relate to the secrets concept as my relationship is based on great openness and communication. Doesn't mean there's no conflict, but communication is of the essence. So, I think this does reflect something about the mainstream of society, the cliche of secrets. I think a lot of people live that way and are surprised by what they find out one day. They latch on to someone because of appearances and situations, and they don't care to know the other person or reveal themselves.

If it were a feud between myself and noisy ignorant neighbours that it is impossible to communicate with, I could relate, but not the person I married. Is there a moral centre to this farce that says much more honesty is needed between people? (Or, cynically, at least a stronger power differential if you're going to be such a liar?) I don't know because I couldn't bear to watch the whole thing, but I got the impression it was quite popular and I have no idea why. Obviously something appeals to people about it. How would you psychoanalyze our society based on this movie?