Lyric discussion by kbabyy 

i agree i think he's talking about a summer fling that isn't working perfectly as complications come about as summer is ending, and they dont know what they want

"cause summer is gone" is a metaphor for their relationship, summer's gone along with their fling

so they break up, but he's regretting it, or longing for the relationship they had when everything was going good and "And I pray you die inside some nights as the winter comes on" is him hoping the girl is missing him too

beautiful song.

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