"Always Mine" was the third single released from "Dulce Amor". The song was written by A.B. Quintanilla III. It was produced by Roger Garcia, who was the former back-up guitarist for Selena y Los Dinos. "Always Mine" was selected to be remixed for "Anthology" (1998). The remixed version peaked at number four on the Hot Dance Club Songs chart and number 94 on the Canadian Hot 100. The song describes a teen romance. A young girl who is under peer pressure by her friends must decide who she wants to be with. She struggles with low self-esteem. The song had its key signature in common time. It was performed on B minor with 100 beats per minute. The song was mixed with Polka, Pop and Contemporary R&B.