Meaning of "This Guy's In Love With You" by Diana Ross & The Supremes And The Temptations

The lyrics of "This Guy's In Love With You" explore themes of unrequited love and vulnerability. The protagonist of the song is deeply in love with someone and struggles with the fear of not having their feelings reciprocated. The repeated plea to not be the last to know signifies the desperation and longing for the other person's love. The vulnerability of the protagonist is expressed through the imagery of shaking hands and a breaking heart, highlighting the emotional turmoil they are experiencing. The fear of rejection is so intense that the protagonist believes they will die if the other person does not love them back. Overall, the song captures the raw emotions and insecurities that come with confessing love to someone.