Recently, at yet another baby shower within my circle of friends, I began to notice a subtle change in our relationships. After all of my girlfriends arrived and were seated, I observed that we were divided into two distinctive groups. One group clustered, rather uncomfortably, around the couch. They discussed parties and current boyfriends, while cautiously nibbling on carrot sticks. Other topics included who was dating who, and who had changed since high school. This was clearly the singles group. On the opposite side of the room the other ....