Why do 50% of marriages in America end in divorce?

Because men and Women do not understand one another or take each other's views into account. Women assume that men know what they are doing = they do not and need to be trained to make love to a Woman. Men assume they have higher sex drives than Women do - they do not. Men think they know how to please a Women when they have no clue so they please themselves and big surprise the Woman does not want to be with them . Men are interested in their own pleasure not in that of Women - so why would a Woman put up with this nonsense. Then men go play with themselves instead of bothering to learn what actually works for a Woman, they go look at porn and have affairs, Women also go have affairs seeking fulfilment when they don't get it from their husbands. Women can not assume that men know how to please them, they must train and teach their men to do so, Men have to stop assuming they know anything about Women and learn how they want to be treated and take a Woman's perspective to intimacy.