Letra de Does anyone know what SNFU stands for?

So, here we go
I can't let you down, you'll never know
That I lied to you from the start
Well, here I am
Singing my heart out, woah
I wish you saw what I see
The things you hate inside of me
Said you're leaving
Now I got to say that I've let go
You're on your own
Said you're leaving
Now I got to say that I've let go
You're on your own
Said you're leaving
Now I got to say that I've let go
You're on your own