Between each smile there's a tear in my eye

Why do I feel my end has begun at my start?
Why do I feel this shadow creep over my heart?
Why do I try, to walk tall and not cry
my false smile has no effect due to the pain in my eyes?

Whenever I am with you my heart is always so far away
how hard must I try to at least get back into a fray?
Since this is the only way to get back to a level we used to be
Yet I feel that people like you always fail to see the way that your hole can be filled by my key

I’m the ying to your yang, but you always seem to tear me down
You always smack me like I’m such an evil hound
Now between each smile there's a tear in my eye
I can't take it much more and I’ll end this with a sigh