Desvelado is a fantastic word that means 'sleepless' or 'to have stayed up all night'. It perfectly describes that feeling of being wide awake when you should be sleeping, often because of worry or anticipation.
In this song about heartbreak, Ivan Cornejo sings, "Desvelado esperando que llames" (Sleepless, waiting for you to call). This single, poetic word powerfully captures the anxiety and heartache of waiting for a call that might never come, painting a vivid picture of a long, lonely night.
Ivan Cornejo flips the script on an ex who only reaches out when it suits her. Instead of staying up all night staring at his screen like he used to, he makes it clear right away: "Contesto la llamada cuando me da gana" (I answer the call whenever I feel like it). He used to wait around like a fool hoping she would change ("Como tonto esperando que cambies" [Like a fool waiting for you to change]), but now the tables have turned. When she calls to say she misses and loves him, he already sees through the tricks, calling out her game of "amor y mentiras" (love and lies).
He brings in some sharp Mexican slang to talk about moving on. He sings that lost time is "feria gastada" (spent pocket money), and mentions that "la lana" (cash / money) is at least honest, unlike people: "no es doble cara" (it is not two-faced). The blunt contrast between fake affection and cold cash shows just how fed up he really is. Everything is backwards now ("mira todo ya es al revés" [look, everything is upside down now]), and he finally holds the power to let the phone ring.