The song "Don't You Know" by Heavy D & The Boyz is a heartfelt love letter expressed through lyrics. The story revolves around Heavy D, the singer, receiving a letter from his love interest. In the letter, she expresses her feelings and important things she wants to share with him. Although she may have been beating around the bush, Heavy D reads between the lines and realizes that it's time to address their relationship. In the past, Heavy D wasn't ready to give his love interest what she deserved. However, circumstances have changed for him. He is now successful, making records and getting paid. With his newfound success, he feels ready to confess his love for her. The song then transitions into a vision of their future together. Heavy D pictures their wedding, surrounded by friends and family. He envisions himself wearing a dapper white tuxedo while his love is adorned in a beautiful white gown. Their love and happiness will be evident, bringing tears of joy to their parents and creating an atmosphere of celebration. As Heavy D continues to profess his love, he assures his love interest that if he had anything in the world, it would be her. He emphasizes that their love would be genuine and true. He envisions spending his time holding her hand, making her his lady, and being the man in her life. The song concludes with Heavy D expressing his desire to return home soon and work on their dream together. He signs off the letter by assuring her of his love and signing his name. Overall, "Don't You Know" is a love song that showcases Heavy D's realization of his feelings, his dreams of building a life with his love interest, and his commitment to their relationship.