Many people have a certain image or thought of others. Most good images created for loved ones or once loved ones, disappear due to broken expectations. People are people. They will live for themselves (most of the time). The best way to avoid disappointment is by not expecting much from these people. Sure, you can live a lie for a good amount of your life with the illusion of that-someone to be a certain way. Its actually false advertisement that you purchase yourself. Then once the bag is opened and you find what you were not expecting, actually the opposite of the ‘thought’ that you had created for this person, your whole world falls. Then, you must get up and face the fact that you have to stop expecting certain things from people. All in all, you learn from your mistakes. The best way to avoid such harm is to focus on yourself and not on the one sided thought that you have of others.