Few people come into life to bring some changes in your life and some changes in your habit too !! And then go away by giving some memories with some pain which they don't know about. They make you smile without knowing u also wanted to smile with them. They make you feel special without knowing they have an effect on you. They make you feel better about yourself without knowing that they have beautiful place in your heart. They change your habit without knowing that they have become your habit. They make you laugh harder, make you laugh from your heart without knowing they have become the reason of your smile and laugh.
And then one day they become vanished without any good byes. When you were happy to have them on your life at that time they went without any explanation. Though it's not their fault. It's our fault to expect so much without knowing them properly.
They leave us giving some memories which are so special for us without knowing it. Because they don't care about us or about our feelings. They just come to change us in a good way and leave us with some unspoken words and some deep feelings and some sweet memories which are so important for us but not for them.
Life is strange.
Everyone comes into our life with a purpose. No one comes without any reason. So welcome everyone with a brightest smile n keep smiling, enjoy ur life to the fullest.  
BUT AT THE END OF THE DAY WE JUST CAN'T FORGET SOME PEOPLE OR ELSE WE REALLY DON'T WANT TO FORGET THEM !!