Cake - I'll survive

First I was afraid
I was petrified
Kept thinking I could never live
without you by my side
But I spent so many nights
thinking how you did me wrong
I grew strong
I learned how to carry on
and so you're back
from outer space
I just walked in to find you here
with that sad look upon your face
I should have changed my stupid lock
I should have made you leave your key
If I had known for just one second
you'd be back to bother me