Taylor Swift - Would've, Could've, Should've

If you would've blinked then I would've looked away at the first glance
If you tasted poison you could've spit me out at the first chance
And if I was some paint, did it splatter on a promising grown man?
And if I was a child did it matter if you got to wash your hands?
All I used to do was pray
Would've, could've, should've
If you never looked my way
I would've stayed on my knees