There has been much written about atomization and the rise of loneliness (and surely there is much more to write), but this essay by Andrea Mrozek is a good summation of the problem:
The failure of the sexual revolution for women is such that scholars now discuss the paradox of increasing unhappiness for women in particular. The paradox refers to the objective reality that women’s freedoms are greater now, and yet female happiness declines. One journalist writing recently in Oprah details the very lives of women falling apart. She calls a friend to ask about people to interview: “Do you know anyone having a midlife crisis I could talk to?” Her friend replies: “I’m trying to think of any woman I know who’s not.”