Yes life is not fair. Doing good things to others does not assure you that good things would happen to you as well. Being honest does not assure repentance or loyalty. Life is not fair at all. people will forget about you once they are done with you (well okay maybe not all) once that they don't have any use for you. so why don't you give a damn to what others would say to you. its a dog-eat-dog world. so go ahead and shamelessly reach for your own happiness.