I´m A Terrible Person lyrics

I'm a terrible person
Cause I've made up my mind
I'm a terrible person
Cause I've led her on
And I'm the only one who knows
What I've done to her
I'm much smarter now
I won't tell her friends before her
Oh I'm afraid
It's gonna be a bad day come Sunday

I'm a horrible person
I read her diary
I'm not to be trusted
I told all of her secrets
To all the guys in town
They all laughed and slapped me five
Luckily she doesn't have dirt on me
Cause I'm the cleanest guy
Oh I'm so afraid
It's gonna be a bad day come Sunday

I don't think I'll ever been sorry
No I'm not sorry for a thing I've done
And I don't think I'll ever wake up lonely
Cause having her around
Wasn't all that special