Meaning of "That'll Be The Day" by The Beatles

The lyrics of "That'll Be The Day" convey a sense of distrust and cynicism towards the idea of love and commitment. The protagonist of the song has been hurt too many times, and their partner's promises of love and loyalty have lost their meaning. The repetition of the line "That'll be the day" highlights the protagonist's anticipation of their partner's eventual departure, suggesting that they are resigned to the fact that all relationships ultimately come to an end. The use of the phrase "make me cry" emphasizes the emotional pain and vulnerability the protagonist experiences in relationships. The line "You say you love me, baby, a-still, you tell me maybe" exemplifies the wavering nature of their partner's affection, leaving the protagonist feeling uncertain and unfulfilled. The reference to Cupid and the dart shot at the heart symbolizes the initial attraction and passion that fades over time, leading to the eventual breakup. Ultimately, the protagonist's belief that the day their partner leaves will be the day they die suggests that they have become emotionally dependent on this relationship, and its end will have a profound impact on their well-being.