Lyric discussion by miserablefailure 

Such a beautiful, beautiful song.

When Jeff sings, "Sometimes a man gets carried away, when he feels like he should be having his fun," is he implying that he left her so he could "have fun" and drink and be a man and bed many women? Then, does he realize that that kind of lifestyle, he "awake[s] to find that really, he has no one"?

That's the way that I interpreted it... A man leaves his girlfriend for freedom, for the pursuit of all "fun" and manly things, only to find that it leaves him empty. It doesn't fill him up the way his lover did.

Is there anything I missed/misinterpreted?

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