Lyric discussion by ourmodernred 

I think this song is about regret. it's about a young love back in the day that never was truly experienced, and way later on in life after having a family and kids, he regretted never getting this girl. Notice how he "met his wife at a party" when he drank too much and his son isnt too happy with their relationship, showing how his life now isnt nearly as good as it could have been with that other girl.

I agree.It's about the one who Got away. He probably got his present wife pregnant at that party while he was drunk hence- ''i met my wife at a party, when i drank too much''..now he has a son who he barely communicates with.. maybe out of regret.

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