Desvelo literally means "sleeplessness" or the state of being unable to sleep. It comes from the verb velar, which means to stay awake or to watch over.
In the song, the artist sings about the "noches de desvelo" (sleepless nights) he shared with his ex. It's a poignant and romantic word that implies more than just staying up late; it suggests being kept awake by deep conversation, passion, or intense emotion, capturing the essence of what he's lost.
In "A TU NOMBRE", Mexican artist Junior H delivers a classic sad corrido tumbado full of money, drinks, and late-night regrets. He has all the cash in the world to spend, but it does nothing to fix his broken heart. Right from the start, he confesses that his nonstop partying is just a cover: "Y si a diario me miran tomar / Es que no te he podido olvidar" ("And if you see me drinking daily / It's because I haven't been able to forget you"). He even raises a toast in her honor ("A tu nombre otra vez voy a brindar"), while doubling his stacks of cash ("las pacas") and partying with other girls ("morras") to distract himself.
His coping mechanisms are a bit over the top, spiraling through "drogas, mujeres, las armas / El dinero" ("drugs, women, weapons, money"), which he directly blames on losing her kisses. Still, beneath the chaotic lifestyle, he is checking his phone and staring at the passenger seat where her scent still lingers in his BMW ("en el BM tu perfume está regado"). He pours another bottle of Buchanan's whisky to numb the pain, fully aware that she wanted a sweet, romantic boy with poetry, while he sees himself as a rough street guy ("un vago"). He almost runs out the door to look for her, but checks himself with one respectful line: "Pero si eres feliz tengo que respetarte" ("But if you're happy, I have to respect you").