Esclavo literally translates to "slave". It's a powerful and dramatic word used to express complete devotion or subjugation to someone.
In this passionate bachata, Prince Royce sings, "De tu encanto soy un fiel esclavo" (I am a faithful slave to your charm). He uses this intense metaphor to describe how he is completely captivated and powerless, willing to endure pain for the person he loves. It's a classic theme in romantic music that highlights the overwhelming nature of his feelings.
Prince Royce is trapped, and he knows it. In "Libérame", the Dominican-American singer begs his partner to cut the cord because he cannot bring himself to walk away. She is running around with someone else, trying to laugh it off with an excuse that stings: "Tú con otro y dices que es un pasatiempo" ("You're with another man and you say it's just a hobby"). Even worse, he knows he is falling for the trick. He admits, "Como un tonto te creo" ("Like a fool, I believe you"), before later confessing an even sadder truth: "Como un tonto me miento" ("Like a fool, I lie to myself"). That tiny shift from believing her to lying to himself is brutal.
The drama turns into full misery fast. He loses his appetite, stops sleeping, and describes his heart as a hostage to "crueles besos" ("cruel kisses"). Notice how he uses the phrase "Ya hazlo de una vez" in the chorus: that translates roughly to "Just do it already" or "Get it over with once and for all." It is blunt, desperate, and dramatic. Instead of asking to fix things, he screams "Libérame, libérame mujer" ("Set me free, woman"), asking her to be merciful enough to break his heart for good so he can finally leave.