Lyric discussion by Panic! 

Why does it have to be a metaphor for anything? The story is simple.

The character telling the story is the groom, he's pacing nervously and overhears the conversation. He chimes in with the line and then rethinks his reaction and treats it with poise and rationality. He blows the comment off as nothing but jealousy and that's it. Get on with the wedding, pour the champagne.

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