Dispareja means "uneven" or "mismatched." It's a descriptive word that goes beyond simple opposites, implying a lack of balance or harmony.
In the song, the artist uses it to describe a relationship: "Una pareja dispareja, donde el amor ya no es bienvenido" (A mismatched couple, where love is no longer welcome). This word perfectly encapsulates the feeling of two people who are together but no longer fit, making it a poignant and memorable choice.
Kapo spends this whole song standing outside a door he used to walk through. What he keeps coming back to is small and domestic: "En mi mesa solo existe un café" (on my table there's only one coffee), and a painting nobody ever took down, "Aún sigue colgado ese cuadro en la pared y no se ha desteñido" (that painting is still hanging on the wall and it hasn't faded). The title line is the offer he makes anyway, "Y así no estés en casa, esta es tu casa, nena" (and even if you're not home, this is your home, babe). He is not asking to come in. He knocks and then immediately backs off: "No tienes que abrir, solo escúchame primero" (you don't have to open, just listen to me first).
The funny part is his evidence. He wants her back because of a video: "Es que vi un TikTok y estoy que me muero" (it's just that I saw a TikTok and I'm dying), "Decía que no vuelve otro amor como el primero" (it said that another love like the first never comes back). Later the breakup gets full orchestration, the string quartet still playing while the ship goes down: "Y los violines del Titanic sonaron la canción" (and the Titanic's violins played the song), "Cuando lo nuestro se hundió, ma" (when what we had sank, babe). By the last verse he has stopped arguing his case and is just filling the hours, "Pa' quemar tiempo mientras vuelve" (to kill time while she comes back), still saying "while", not "if".