Foundations Lyrics

I was trying to learn this song and although the verses worked out ok I found the chorus
the tabs available just didn't sound correct.
After watching various clips of Kate Nash and her band playing live I've come up with
which I think is more like it.
My finger tips are holding onto the cracks in our foundation,
and I know that I should let go, but I can't.
in
And every time we fight I know it's not right, every time that you're upset
and I smile. I know I should forget, but I can't