It's traumatizing to think that a best friend could become just a friend. That's because there is virtually no difference between an acquaintance and a friend. But the gulf between a friend and a best friend is enormous and profound. And if I look at it that way, I think I can see the value of a wedding. If you're my best friend and the only way I get to have dinner with you is by traveling thousands of miles, selecting a chicken or fish option, and wearing a dress in the same shade of lavender as six other girls, I will do that.