[SPOILER]
I suggest this song is from Rattman's point of view, not addressed toward Chell but toward Caroline, the human being who became the basis for the GLaDOS AI. Since Rattman was on the crew that created GLaDOS it seems likely that he would be deeply troubled by the horrific results of his work.
"Exile, it takes your mind again" refers to how they literally took her mind and it is now trapped apart from humanity and everything she used to be.
"Vilify" refers to how being connected to the Aperture network has turned her evil (as it did for Wheatley when he was connected instead)
"Sucker's luck" refers to her becoming effectively immortal at the cost of her humanity (not a great trade for her).
"Have you given up" is asking if she's even trying to remember who she used to be any more.
"No, you're thinking too fast, You're like marbles on glass" refers to the increase in her mental capacity and accompanying loss of sanity from the cybernetic conversion.
"Don't even try" may be Rattman's acknowledgement that Caroline has no choice, she can not escape her fate or stop herself from doing what she does.
[/SPOILER]
[SPOILER] I suggest this song is from Rattman's point of view, not addressed toward Chell but toward Caroline, the human being who became the basis for the GLaDOS AI. Since Rattman was on the crew that created GLaDOS it seems likely that he would be deeply troubled by the horrific results of his work.
"Exile, it takes your mind again" refers to how they literally took her mind and it is now trapped apart from humanity and everything she used to be.
"Vilify" refers to how being connected to the Aperture network has turned her evil (as it did for Wheatley when he was connected instead)
"Sucker's luck" refers to her becoming effectively immortal at the cost of her humanity (not a great trade for her).
"Have you given up" is asking if she's even trying to remember who she used to be any more.
"No, you're thinking too fast, You're like marbles on glass" refers to the increase in her mental capacity and accompanying loss of sanity from the cybernetic conversion.
"Don't even try" may be Rattman's acknowledgement that Caroline has no choice, she can not escape her fate or stop herself from doing what she does. [/SPOILER]