My lessons: 1) Many of your friends won't openly disagree with you inorder to avoid arguments. 2) They will never be totally honest - they might be honest but never totally honest, something will be hidden from you everytime. 3) Want your friendship to be healthy? Then avoid these mistakes. 4) Have the guts to be honest & openly disagree - don't argue. 5) When your friend is being honest, appreciate it even if the message hurts. 6) Trust your friends but don't rely on them.