If someday you don't want to talk to anyone

"If someday you don't want to talk to anyone,
Call me,
I'll not ask you to talk to anyone.
But, I can keep quite with you.
If someday you want to run away,
Call me,
I'll not ask you to stop.
But, I can run with you.
If someday you feel like the happiest moment of life,
Call me,
Definitely, I'll not make you sad.
But,
If someday you call me,
And,
There is no reply.
Please, come very soon
Perhaps, I need you....."