I'm not sure I really like this one, but it's new:

There's something that I won't tell you
There's something I never can
How I cried because you were leaving
Months before you were gone
I've done it with male and female
I've done it with old and young
I can't guard my heart
I can't guard my heart

The day I lost your picture
Was the day that I broke down
Now I keep you in my wallet
In my memory's lost and found
And all the friends I've ever loved
Sit there staring, without a sound
I can't guard my heart
I can't guard my heart

That tightrope connection
It just seems so strong
Until I step out to test it
The I find out what's wrong
Loose string in my fingers
As I plummet towards the ground
I can't guard my heart
I can't guard my heart

I'll walk the line everytime
And take the falls as they come