Movies may not be a portrait of reality but, I hope and believe that it is at-least a silhouette. I watch a lot of movies and try to learn and infer about life from them. After seeing lot of portrayals of love in movies, a thought came to my mind. In many movies (I mean Indian) the woman-man relation can be compared to that of a goddess-devotee relationship. Some movies go far as to make it explicit through songs or some other such medium. Finally, the man succeeds to please the woman and gets the blessing/boon of marriage. The idealized portrayal of love typically ends this way, and never says what happens post marriage. Now, if we look at the idealized portrayal of married life in movies, the wife is portrayed to be submissive and obedient to the husband. In some cases it goes even so far as to being a master servant relationship. It seems to me that somewhere along the transition from love to marriage this role reversal causes a non-smooth point (those who know differentiation can look for a pun and see how far the analogy goes). This may be one of the reasons for broken love marriages.
All said, this role reversal does not seem too surprising from an evolutionary perspective. In fact, I have a, possibly wrong, evolutionary explanation for this. In most animals it is the role of the male to woo the female. So, it is natural that men continue to fulfill the role. On the other hand, having multiple relationships is beneficial for males whereas women need security, protection, and care while pregnant. If the women has multiple relationships, none of them have an incentive to take care of her while pregnant as no one can be sure that he is the father. So, a stable relationship is more crucial for females. So, in order to stabilize the relation, being an obedient and submissive wife may have evolutionary benefits. Thus, the role reversal. I am aware that I may be over simplifying the situation. For instance women may choose to stay with men who do not have many relationships, thus making it not beneficial to have multiple relationships.
Making null the evolutionary or social forces may be too difficult for one individual to achieve. What can be done, in my opinion, is to understand the forces in play and in a Zen-like-way use it by not opposing but rather flowing along. For example, having lesser expectations from your spouse and giving your spouse at least a fraction of what an ideal lover(male) or an ideal wife gives, might go a long way.