The song "I Guess I'll Have to Change My Plan" by Julie London is about a person who realizes they have lost their significant other to another person. The lyrics suggest that the person had not anticipated or considered the possibility of someone else coming into the picture. They feel a sense of regret for not seeing the signs and realizing there would be another man in the picture. The lyrics also mention the person's failed attempts to reach their goals. They used to dream big and aim for the moon, but in the end, they couldn't achieve what they desired. This could be metaphorical, representing their inability to hold onto their relationship despite their efforts. The song also touches upon the person's disappointment in themselves and their low self-confidence. The mention of buying blue pajamas and being a "fly lothario" suggests that they may have tried to impress their significant other but failed. They feel a sense of defeat and retreat into their own personal shell, dwelling in their own misery. Overall, the song speaks to the feelings of loss, regret, and self-doubt that come with realizing one has lost someone they love. It conveys a sense of longing and the need to reevaluate and change one's plans in light of this loss.
