in the back of my mind lyrics

I'm blessed with everything
World to which a man can cling
So happy at times when I break out in tears
Back of my mind I still have my fears

I live my life with her
Love her true, she knows I'm sure
I make her happy just living so plain
Back of my mind I'm 'fraid it's gonna change

I tried to run far away from thoughts, I should try to keep away
But they just keep coming back to me
I tried to rationalize but some day I might realize
That things are just good the way they'll be

I know it's so hard to find
A girl who really understands your mind
What will I do if I lose her?
It'll always be way in the back of my mind