Disfraza comes from the verb disfrazar, meaning "to disguise" or "to hide". It's an interesting word because it evokes imagery of costumes and hidden identities, which isn't common in everyday romantic lyrics.
In the song, Fonseca sings, "Porque yo sé que en tu mirada / Hay un te quiero y se disfraza." He uses disfraza to suggest that the person's true feelings of love are hidden or masked in their gaze, adding a layer of mystery and longing to the lyrics.
Have you ever been stuck on someone, even when you know it's probably not a good idea? Fonseca and Matisse totally get it in "Pasa"! This song is all about that feeling when you just can't forget someone, no matter how much time goes by. The singer admits, "Yo te confieso no te he podido olvidar" [I confess I haven't been able to forget you] and even dreams of finding them in every kiss. It's that classic love story where someone ends up heartbroken, and our singer is definitely feeling like "el peor" [the worst] for perhaps causing pain.
But even with the heartache, there's a real hope for reconciliation. He promises his love is true and offers his whole heart, saying "Mi corazón te doy entero" [I give you my whole heart]. He knows he messed up, but he's begging for another chance, because "lo que pasa es que no te pude olvidar" [what happens is that I couldn't forget you]. It's a beautiful, honest look at trying to win back someone you deeply regret hurting, and how some memories just refuse to fade.