Traidora is the feminine form of the word for "traitor". It's a powerful and dramatic word that's also the title of the song, immediately setting a tense, emotional tone.
In the chorus, the singer directly accuses his former lover of betrayal, singing "Traidora, te sigo esperando" (Traitor, I'm still waiting for you). This single word encapsulates the entire story of heartbreak and makes you want to learn more about what happened.
This song by Cuban group Gente de Zona is a perfect example of a dance track with seriously sad lyrics. The singer is completely heartbroken over someone who left him. He's so devastated that he says, "La vida se me va acabando marchitando, agonizando" (My life is ending, withering, agonizing). He knows he's lost her, but he can't let go.
He calls her a "Traidora" (Traitor) and an "abusadora" (abuser), but in the next breath, he's begging her not to leave him. He admits, "Ay no me dejes más solo / Porque me da miedo y lloro" (Oh don't leave me alone anymore / Because I get scared and I cry). He's stuck, waiting for her even though he knows everyone is saying she's not in love with him. It's all about that desperate feeling of wanting someone back, no matter what.