Calvario literally refers to Calvary, the place where Jesus was crucified, but it's commonly used to mean an "ordeal" or a "very difficult and painful experience."
In this song, Blessd sings, "E' mucho mejor que vivir en tu calvario" (It's much better than living in your ordeal). He uses this strong word to describe the suffering and hardship he experienced in a past relationship, emphasizing how much better his life is now that he's moved on.
In "Solitario," Blessed and Ñengo Flow team up for a track that's all about moving on after a tough breakup. It kicks off with a warning not to get carried away by love at the start because, as the lyrics say, "Al final solo quedarán las promesas" [In the end, only promises will remain]. Blessed shares his own experience, explaining how he learned from the pain and now believes it's better to be alone. He even says, "La vida me enseño / Que es mejor estar solo" [Life taught me / That it's better to be alone].
The song is a defiant declaration of independence. He's done with the drama, proclaiming, "Solo, solitario / E' mucho mejor que vivir en tu calvario" [Alone, solitary / It's much better than living in your ordeal]. He's actively erasing memories, and he's not looking back, telling his ex, "Que no te quiero / No me sigan buscando" [I don't love you / Don't keep looking for me]. It's a powerful message about healing, self-preservation, and finding joy in solitude after a relationship that brought nothing but stress.