The way I interpret this song is that he said or did something to his girl that caused him to lose her, and it was so bad that no matter what he does to get her back, he knows it'll never outweigh what he said or did to lose her in the first place.
Things like "blue on black," "cold on ice," whisper on a scream," are things that seem insignificant and even get lost under the force of the other.
So whatever he can say now to try to make up for it, is like blue on black - overpowered by the original deed, so it won't bring her back.
Or, considering the line "slipped from -your- tongue," this could also mean the other way around - somebody hurt him so badly that no matter what she does - well, you get the picture. It's a bit confusing as this sort of contradicts "doesn't bring you back."
The way I interpret this song is that he said or did something to his girl that caused him to lose her, and it was so bad that no matter what he does to get her back, he knows it'll never outweigh what he said or did to lose her in the first place. Things like "blue on black," "cold on ice," whisper on a scream," are things that seem insignificant and even get lost under the force of the other. So whatever he can say now to try to make up for it, is like blue on black - overpowered by the original deed, so it won't bring her back. Or, considering the line "slipped from -your- tongue," this could also mean the other way around - somebody hurt him so badly that no matter what she does - well, you get the picture. It's a bit confusing as this sort of contradicts "doesn't bring you back."