Capítulo literally translates to "chapter", as in a chapter of a book. This word perfectly captures the hopeful theme of the song.
In the chorus, Becky G sings, "Vamos a empezar otro capítulo" (Let's start another chapter). She uses this as a beautiful metaphor for getting a second chance at love, suggesting they can leave the past behind and start a fresh, new page in their story together.
Have you ever run into an ex and instantly realized you still have feelings for them? That is exactly what Becky G is dealing with in "OTRO CAPÍTULO" (Another Chapter). She admits right away that a second chance was not on her schedule: "Sé que no estaba en mi plan otra oportunidad" ("I know another chance wasn't in my plan"). But after taking a good look at him, she throws her plans out the window. She drops a direct compliment with "Qué bien te ha caído el tiempo" ("Time has treated you well"), pointing out that while he was always handsome, he looks even better now. She even realizes she wasted time looking for his qualities in other people: "Siento que perdí mi tiempo / Buscando en otros lo que tú me das" ("I feel like I wasted my time / Looking in others for what you give me").
Instead of overthinking past mistakes, Becky pushes to wipe the slate clean. She asks the obvious question: "¿Y si nos besamos como antes?" ("What if we kiss like before?"). Her mindset is simple: "Lo que pasó, baby, ya pasó" ("What happened, baby, already happened"). She uses the phrase "borremos la memoria" ("let's erase our memory") because life moves too fast to hold onto old drama ("Que la vida se va" / "Life is slipping away"). It is a bold, fun track about turning the page with someone familiar and starting a brand-new chapter together.