Depressed and invincible, why can't you see each other's circle of friends and personality signature?
Are you sure the other person has added you as a friend? Or just added to each other? You can send a message to test it and see if the system prompts you to add you as a friend before sending a message. If the other person doesn't add you as a friend, then in the upper right corner, Settings, Privacy Settings, there is a box that allows strangers to view ten photos.