Lyric discussion by toughguybambino 

The way I interpret this song is by a love triangle. The girl must choose ("either side left or right") between two guys. "There is no middle ground."

Could be just between a guy and a girl, but the line "for us to walk" suggests that there's two decisions and that one of them is going to love her for it and the other is going to hate her for it.

Once, again, I relate this to one of my own experiences.

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