This song opens like a voice note. "Hola, mi vida" [Hi, my love], then "Te escribí esta canción con un amigo" [I wrote you this song with a friend], and "Ojalá que te guste" [I hope you like it]. It is sweet and a little awkward, which is exactly the point. The singer has a crush he can no longer hide: "Yo ya no sé disimular lo que me pasa con vos" [I can't hide what happens to me with you anymore]. Notice vos here, the informal "you" used in Argentina and other parts of Latin America, and the matching decime [tell me] later on. He also uses tú in the same song, so you get both forms side by side.
The funny part is that she has no idea. "Tú más despistada que yo" [You, even more clueless than me] tells you neither of them is great at reading signals, and he is sure she is "la única que no se va a enterar" [the only one who won't find out] about "un mundo imaginario" [an imaginary world] where "me escoges al final del día" [you pick me at the end of the day]. He admits "Las fantasías no siempre se cumplen, pero no se olvidan" [Fantasies don't always come true, but they aren't forgotten]. Then he goes for it. "Que la soltería, aunque me queda bien" [Being single, even though it suits me] is a cheeky brag, and ¿Pa' qué perder el tiempo? [Why waste time?] uses pa', the casual spoken short form of para. By the end he is asking her to say something to calm him down, because "ya estoy temblando, ¿para qué te miento?" [I'm already shaking, why would I lie to you?]. It is a confession song where the nerves are half the charm.