an leave Betty and her friend Joan sitting on the sofa, talking, go out to a ballgame, come back three and a half hours later, and they’re still sitting on the sofa, talking?РWhat in the world, Harold wonders, do they have to talk about?РBetty shrugs. Talk? We’re friends.РResearching this matter called friendship, psychologist Lillian Rubin spent two years interviewing more than two hundred women and men. No matter what their age, their job, their sex, the results pletely clear. Women have more friendships than men, and the difference in the content and the quality of those friendships is “marked and unmistakable”.РMore than two-thirds of the single men Rubin interviewed could not name a best friend. Those who could were likely to name a woman. Yet three-quarters of the single women had no