Lyric discussion by cubbyblues 

"Let me go, I'm only letting you down."

He feels like he wasn't good enough for her.

"I'll have another, then I'll go to bed."

He still loves her and he's drinking himself tired and then going to bed at night and dreaming of her. He obviously can't get her out of his mind.

"You and I used to shine like a jewel ..."

The relationship was all-encompassing and grand at one point, but it eventually soured, for whatever reason and that initial magic is no longer there ... but the love still is (at least on his part).

"We were nothing, we were only the past."

He's lying to himself here, saying that the relationship is done and over with and he's moving on. He's saying it's almost gone, but then admits he's confused and he still loves her. Seems he's trying to justify the end.

"You never knew me but I did my best I'm just lonely inside I guess You gave me everything You really tried, thanks If we were nothing and we're only the past Well I'm just living in a dream I guess"

That's pretty self-explanatory, to me. He finally, again, admits that the relationship couldn't have meant nothing and you can't just chalk it up to "lesson learned." He's obviously still lonely and thinks about her often.

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