Valió madre is a very common Mexican slang phrase that literally translates to "it was worth mother," but it means "it went to hell," "it was worthless," or "it didn't work out."
In the song, the artist uses it to express the abrupt and disappointing end of a relationship, conveying a strong sense of frustration and resignation. It's a powerful and colloquial expression that adds a raw, authentic feel to the lyrics.
This song is a straight-up, no-filter heartbreak anthem. The title itself, "Valió Madre," is a very direct Mexican slang phrase that basically means "it all went to hell" or "it's worthless now." The singer is watching his ex move on immediately with someone new, telling him all the same things she used to tell him. He's completely devastated, admitting, "Agarré la botella pa' olvidarte" [I grabbed the bottle to forget you].
What makes it so sad is how he looks back on their time together. He feels he was a great boyfriend who gave her everything, saying, "Cuando ocupabas de mí, corriendo fui yo / Para abrazarte" [When you needed me, I was the one who came running / to hug you]. Now he feels like a fool for falling for her, describing her kisses as poison. He's so broken up that he can't even leave his room, wishing that in another life she could be the person she was when they first met. It's a raw look at feeling left behind and completely betrayed after giving your all to a relationship.