Torturo comes from the verb torturar, meaning 'to torture'. While it can refer to physical torture, in this song, it's used metaphorically to describe intense emotional suffering.
Álex Ubago sings, "Y ahora me torturo si lo pienso" (And now I torture myself if I think about it). He uses this strong verb to convey the deep regret and mental anguish he experiences when reflecting on his past mistake of ending a relationship, highlighting the emotional pain he inflicts upon himself.
Have you ever realized you made a huge mistake after it was too late? That's the feeling Álex Ubago captures in his song "Idiota." The singer is filled with regret over a breakup he caused. He spends sleepless nights thinking about the person he lost, and simple pleasures like morning coffee or watching Netflix no longer feel the same. He admits, "fui yo quien puso fin a esto" (it was me who put an end to this), and now he tortures himself with the memory.
He calls himself an "idiot" for not seeing that what he was looking for was "justo en frente de mí" (right in front of me). The lyrics suggest his career as an artist got in the way, creating a conflict between "el amor y el dinero" (love and money). It's a classic story of realizing what you had only after you've lost it, and wishing you could turn back time.