Leaving unwanted people behind

We waste a lot of time of our life by thinking about people who don't think about us in the same manner. Sometimes, we keep on thinking for years for them and in return we get nothing. They never respond back to us in the same manner as we feel about them. After sometime, we realize that we wasted valuable time of our life for unwanted people. If you want that such situation do not come into your life, then it is better to leave such people behind and do not think about them. It is better to treat people as they treat us. The main thing in life is to have peace of mind. Thinking about others will not stop them from behaving in a wrong manner; therefore, it is good to leave such people behind and free our minds also from their thoughts.