I Know A Tear Will Fall

I can never seem to find the words
To explain to you how I feel
A silent tear falls as I doubt
That what we have is real.

A happy thought enters my mind
And I wipe the tear away
But I know another tear will come
And the happy thoughts wont stay

At first I was wrapped up in you
But it all keeps going wrong
I want you gone but I cant let you go
I should have known it all along

I wish that I could block you out
I want my mind to be hollow
Because for everytime you make me smile
I know a tear will follow