Some Marriages Don't Survive Middle Age Adultery. Will Yours? Does male midlife crisis cause husbands to cheat? For many women, middle age will turn their marriages into nightmares when their formerly faithful husbands go outside the marriage in a search for the fountain of youth and believe it can only be found in the arms of "the other woman." "Is he cheating?" "Is he having a midlife crisis?" "When will it be over?" "What should I do to get him back?" "What do I tell our children?" "How can he just turn his back on our marriage?" "How do I deal with the other woman?" "Should I make him...