Infinito means "infinite" or "endless." While it's a common word, its repeated and poignant use in this song makes it particularly impactful and memorable.
The singer laments the end of a love that he believed was "infinito" (infinite), questioning how such a profound connection could simply cease to exist. This contrast between the perceived endlessness of his love and its sudden end creates a powerful emotional core for the song, making the word resonate deeply.
"Bésame Bonito" is a bittersweet goodbye song. The singer pushes back on the idea that love is simple once you're in it — a love can die in an hour, and this one is ending, worn down by distance rather than by any loss of feeling.
Instead of trying to hold on, the singer asks for one last gentle kiss to stretch out the final moments together, even while accepting the relationship is over. Admitting "te lloraré" (I will cry for you) again and again, the singer isn't hiding the pain, but they want the goodbye to be tender rather than bitter.