Cheaters & the ethical dilemma at the heart of the film...?

if you are not emotionally attached to a person then cheating would not actually harm your relationship. The reason cheating is bad is that there is a certain chaos that follows after a person has cheated or shown similar feelings for another individual which causes jealousy. Don't get me wrong, cheating should be avoided at all costs but due to human nature we all cannot function to the way society is organized.