Lyrics Analysis

And this will be
Relatively painless
With an impact like a train wreck        Reference to journeys/trains (Underground)
And you believe
There is no escape yet
You will find it through your headset      
Escape from temptations/evil antagonists through the music

Sorry this machine is speeding           'Machine' = Urban (London)
So fast that I threw you off        Running away/escaping antagonists
Words you spread in privacy are killing me
I know I hurt you
But I'll hurt you more if I don't let you go       
Refering to the negative effects that the antagonists represent

My bags are packed
Train ride to a guilt trip         Refers to journeys/trains
Recited, like words you memorized from movie scripts
But the scene we cannot edit
And when the credits end
No one knows where happy endings just might end up next

Sorry this machine is speeding
So fast that I threw you off
Words you spread in privacy are killing me
I know I hurt you
But I'll hurt you more if I don't let you go

Every little thing's amounted to nothing but here I am      
Nothing = the antagonists aren't actually a threat, you can avoid them