Dear Othello,
You better watch out for Iago. He is planning to do you dirty. Even though he was telling you things like " Im your friend and I wont do anything to hurt you". He is trying to trick you as if he is really your friend. Remember that he is still upset that you got the higher position and he didnt!!!! Open up your eyes and pay attention to the things he does. It reflects on who he really is as a person.
                                               From , A concerned friend.