You're not just friends because you sit together, talk on the phone, or have matching flip-flops. Or because each other's wardrobe you share. Best friends because when she smiles, a grin forces itself across her face, no matter how mad you are, when she cries you instantly feel her pain and want to cry with her. When you look in the eyes you know there is no one you could ever trust more, regardless of how many broken hearts you've had. That's what it means to be best friends.