Despecho is a rich Spanish word that blends spite, resentment and heartbreak into a single feeling, usually the bitter mix of emotions left behind after unrequited love or a painful betrayal. English has no single word quite like it.
In the song, Andrés Cepeda sings "Cuando el despecho te hable de mí" ("When the spite talks to you about me"), personifying that bitter feeling as if it were a voice whispering resentful, hurtful things about him long after the relationship has ended.
Andrés Cepeda spends this song talking to someone who is standing right in front of him and is already gone: "Porque hoy te miro, pero no eres tú" (Because today I look at you, but you're not you), "Hoy te escucho, pero no es tu voz" (Today I hear you, but it's not your voice). What follows is a countdown. Each line of the chorus opens on cuando, when. When she misses "quien no falte a tu llamada" (the one who never fails to answer your call). When she thinks of him in "tu cama congelada" (your frozen bed). When she wants to come looking and repair what she lost. Every one of them lands on the same answer: "Te será muy tarde y no será problema mío" (It'll be too late for you and it won't be my problem).
The title carries the argument, and the bridge names who is left holding the bill: "Será problema tuyo / Tu ego y tu maldito orgullo" (It'll be your problem / Your ego and your damn pride). The one piece of advice he offers is aimed straight at that pride, "Si se ama de verdad, se sabe perdonar" (If one truly loves, one knows how to forgive), and it changes nothing. The song closes on three bars of wordless "Lara-ra-ra-na" and one last "Ya será muy tarde" (It'll already be too late).