"Estos Celos" is a song by Grupo Frontera that portrays the feelings of jealousy and loss in a failed relationship. The lyrics express regret and pain as the narrator realizes the mistakes they made that led to the end of the relationship. The song begins by describing how the narrator saw their partner looking beautiful and sensual, and imagined them changing and becoming a different person. The chorus emphasizes the pain and sorrow felt, acknowledging that it was too late to realize that they had everything with their partner but lost it. In the second verse, the narrator mentions specific details they noticed about their partner, like their flowing hair and a beauty mark behind their neckline. Despite the tears shed and the hope that briefly emerged, it becomes clear that love no longer exists between them. The lyrics highlight the regret of the narrator, acknowledging that it was their own mistake. The chorus is repeated, emphasizing the damage and madness caused by these feelings of jealousy. The narrator realizes that they will never learn to live without their former partner. The phrase "contigo tenía todo y lo perdí" is repeated, meaning "I had everything with you and I lost it." The song concludes by repeating the chorus once more, emphasizing the regret for not realizing the value of the relationship sooner. The repeated phrase "conmigo tenía todo y lo perdí" conveys a sense of loss and longing for what was once had.