I never have understood the concept of "A" best friend....I have many. Each fulfill a completely different part of me, a different need and side of me. I love them all and would never be able to choose one over another.
They range in people I met in elementary school, junior high, high school and college. Friendships that range from 23 to 10 years old. I love each of them and know that they're always there for me, as I am for them.