Kate Nash - Foundations Chords & Tabs

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.
[ Tab from: https://www.guitartabs.cc/tabs/k/kate_nash/foundations_crd_ver_3.html ]
Chorus
F                                   Am
My finger tips are holding onto the cracks in our foundation,
	G				        F
and I know that I should let go, but I can't.

Amin                                    G
And every time we fight I know it's not right, every time that you're upset
      F					     G
and I smile. I know I should forget, but I can't