Describe the difference between Emilia's view of infidelity and Desdemona"s sentiments about it as revealed by their discussion in act5?

Desdemona has a more romantic if not naive outlook on love. She can't imagine cheating on her husband even if he deserved it, "No, by this heavenly light!" Emila is much more world weary and realistic about love. She knows that men cheat and thinks it but a little vice to sooth a woman's soul in a world stacked up against them, "The world's a huge thing: it is a great price. For a small vice."