Privilegio means 'privilege'. It's a word that conveys a sense of special opportunity or honor, often used for something rare and highly valued.
In the song, Rels B sings, "Qué privilegio volver al momento en que te conocí" (What a privilege to return to the moment I met you). He uses this word to express how much he cherishes the memory of meeting his love, highlighting the profound impact that moment had on him and his desire to relive it.
Rels B's "1000 Millones" is a heartfelt confession from someone who just can't get over an ex. He's tried "mil millones de maneras de estar sin ti / Y ninguna me vale" [a billion ways to be without you / And none of them work for me], which is such a relatable feeling when you're stuck on someone! He misses the simple intimacy, wishing he could kiss her goodnight and tell her his plans.
He's even tried to move on with someone new, admitting, "La carita de esta niña es muy linda / Pero es que ella no es como tú por dentro" [This girl's face is very pretty / But she's not like you on the inside]. Ouch! That's a pretty blunt way to say it, but it shows how deeply he feels about his ex. He's still waiting for her, hoping she'll come back so he can "volver a vivir contento" [live happily again], even though he sees her living a dream that was once theirs. It's a bittersweet look at trying to move on when your heart is still stuck in the past.