Lyric discussion by 60_miles_an_hour 

I think the meaning here is fairly obvious (well, at least in my eyes!). The woman's husband/boyfriend is a workaholic, and he is so engrossed in his work, and is always AT work, that he is too blind to see the strain he's putting on his relationship. His wife/gf hardly sees him and she feels incredibly sad and alone.

Love the song! :)

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