“2 Extraños” captures that bittersweet moment when a long-term couple suddenly feels like total strangers: Aitana watches a single grey tick on WhatsApp, hears only silence on the phone, and remembers a tearful FaceTime as symbols of a love that lasted four years but now seems to count for nothing. Through everyday tech details and confessions like “Siempre recordaré tu cumpleaños” and “Fue por idiota que yo me hice ese tattoo,” she paints the ache of realizing that shared jokes, promises, and even body ink can’t bridge the new distance. The song’s upbeat pop groove contrasts with lyrics full of regret, highlighting how modern breakups mix lively rhythms with the sting of unanswered messages and memories that still hurt when you think too much about them.