I also think it's about somebody who's hurt her, but instead of whining about it she mocks him and just makes him feel like shit for doing it to her:
"Say what you will
I will walk past that plate of glass
Your time has passed"
She doesn't care what he says anymore cos his time is up, he's the one who fucked up and she don't about his thoughts anymore
"Don't ever say it's my time
Burning hatred will light my way"
She's saying 'don't say I screwed up, and that I'm the one who should be in your shoes' and letting him know that her hate for him is making her do this
"A choice not an echo"
She is choosing to do this, because SHE wants to, not cos she's hearin other people say she should (thus being the echo)
"And as your world comes down, I will be there"
She'll be there to see his world collapse, cos she caused it
"You look so pretty, digging your grave
You look so pretty what's left to save?"
She's mocking him now, and saying 'why bother try and crawl back up cos you have nothing left'
"Say what you will, eyes to the skies
You look so pretty right now"
He can say whatever, cos she'll ignore him either way.
I also think it's about somebody who's hurt her, but instead of whining about it she mocks him and just makes him feel like shit for doing it to her:
"Say what you will I will walk past that plate of glass Your time has passed" She doesn't care what he says anymore cos his time is up, he's the one who fucked up and she don't about his thoughts anymore
"Don't ever say it's my time Burning hatred will light my way" She's saying 'don't say I screwed up, and that I'm the one who should be in your shoes' and letting him know that her hate for him is making her do this
"A choice not an echo" She is choosing to do this, because SHE wants to, not cos she's hearin other people say she should (thus being the echo)
"And as your world comes down, I will be there" She'll be there to see his world collapse, cos she caused it
"You look so pretty, digging your grave You look so pretty what's left to save?" She's mocking him now, and saying 'why bother try and crawl back up cos you have nothing left'
"Say what you will, eyes to the skies You look so pretty right now" He can say whatever, cos she'll ignore him either way.