Bandido literally translates to "bandit" or "outlaw." While it can refer to a criminal, in a more colloquial sense, especially in Latin American Spanish, it's often used to describe a mischievous, charming, or even unfaithful person.
In this song, the singer uses bandido to describe himself, admitting, "Sé que me lo merezco por bandido" (I know I deserve it for being a scoundrel/player). It implies he's been a bit of a rogue in his relationship, acknowledging his past mistakes and the pain he's caused.
Have you ever messed up so badly in a relationship that you just needed some solid advice? That's exactly where Neutro Shorty is at the beginning of "Un Consejo" (A Piece of Advice). He's pouring his heart out to Gilberto Santa Rosa, admitting, "Amigo, quiero hablar contigo Porque ahora no consigo La manera de que me perdone" (Friend, I want to talk to you Because now I can't find The way for her to forgive me). He knows he gave her reasons to hate him, and even though he's laughing on the outside, he's dying on the inside.
Gilberto Santa Rosa, the seasoned artist, offers some wisdom. He tells Neutro Shorty to look in his mirror, acknowledging that while he's a gentleman, he's also human and has made mistakes. He advises Neutro, "Si lo que sientes es real, entonces lucha" (If what you feel is real, then fight). He reminds him that while there are many people out there, "cuando el perdón es de verdad El corazón siempre escucha" (when forgiveness is real The heart always listens). It's a powerful message about fighting for true love and understanding that genuine apologies can mend even the deepest wounds. By the end, Neutro Shorty is grateful, saying, "Gracias a ti, ahora está conmigo" (Thanks to you, now she is with me), proving that sometimes, a good friend and a little advice are all you need.