Why did it happened!!!!!!!!

She didn't write the letters....
She lived her life own way....
He waited for her letters.....
The postmen didn’t reply.......
That happened as things went on.....
She managed to have known.....
She couldn’t live without him......
But he had made last shot......
That there’s not any doubt.....
Time can heal every hurt....
However, the painful guiltiness
Became her bosom friend.......
Why has she made us cry????????
He tells all that while asking,

‘Be happy in your life.’