"What Will My Mary Say" is a song by American singer Jay Black, released in 1963. The song tells the story of a man who finds himself torn between two women, Mary and another woman whom he is attracted to. In the lyrics, the protagonist realizes that he must leave the other woman behind because he values his relationship with Mary. However, he is also aware that if he doesn't leave, he will end up hurting Mary and betraying her trust. He expresses his guilt and fear of what will happen if Mary finds out about his infidelity. The song reflects the internal struggle of a person torn between their desires and the commitment they have made to someone else. It addresses the moral dilemma of choosing between loyalty and temptation and the consequences that may follow. Overall, "What Will My Mary Say" explores themes of love, loyalty, and regret, highlighting the importance of honesty and fidelity in a relationship.