Lyric discussion by IanMorris 

Cover art for Lucille lyrics by Kenny Rogers

My Interpretation:

So the person narrating the song is in a bar & sees a good looking woman who takes off her wedding ring, so he takes the opportunity to chat her up. She says that she is fed up with her life & wants some excitement. Meanwhile a huge man comes up & addresses the woman (Lucille), "You picked a fine time to leave me Lucille" Lucille had left this man at a bad time in his life (at some previous time I should imagine). The man then leaves the situation but it is obvious he was broken. The narrator then carries on with his pursuit of the woman & proceeds to a hotel room with the Lucille to spend the night with her. but the narrator's conscience is bothering him that this woman is deliberately cheating & being cruel & unfaithful to her partner, this taints the situation & he can't go through with it. It appears to me as though the narrator can't do to another man what he wouldn't want to happen to himself

My Interpretation