How you act in life is its own reward, and will reap the reward it deserves. If you are rude to people, don't give them the respect they're due, fail to show even the simplest common courtesy, or act in a hypocritical or lying manner, then you should never question why you get treated that way, why you're alone in life, or why you can't get a member of the opposite sex to stick around. You get what you give, and you, more often than not, get what you deserve.