Should've Said No

This is a contest entry It's A Love Story
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You should've said no, you should've gone home
You should've thought twice 'fore you let it all go
You shouldn've known that word
'Bout what you did with her'd get back to me

And I should've been there in the back of your mind
I shouldn't be asking myself why
You shouldn't be begging for forgiveness at my feet
You should've said no, baby and you might still have me