I believe that many of us just want to be accepted. We figure that if we act or behave a certain way then we will attract certain people. While this is true, if you study the behavior of a person and try to change yourself to be accepted by this person or group of people you will often find yourself unhappy in the end.
I have a young child and she sometimes will watch movies about teenagers that are trying to fit in and be accepted by the "popular" group. The teenager will try and try to befriend this group and find that once they do, they are not happy at all. They will go through all the trouble to wear things they normally would not, go places they normally would not go, do things they normally would not do. But in the end they find that they really have nothing in common with these people after all. It usually turns out that he/she will go back to the friends they had. The ones who always stood by them and shared the same goals and dreams as they did.