Hipocresía translates to "hypocrisy." It's a strong and emotionally charged word that stands out in the lyrics, conveying a deep sense of betrayal and disillusionment.
In the song, the singer directly confronts his former lover, saying, "No llames amor a tu hipocresía" (Don't call your hypocrisy love). This line powerfully expresses his realization that what he once perceived as love was, in fact, deceit and insincerity, making it a memorable and impactful word choice.
"Lluvia" is a breakup song. The singer already knows the relationship is over, and he asks his ex not to bother explaining, since he does not want to hear it dressed up as love anymore.
The rain in the title stands for her kisses and touch: something that used to feel warm slowly turned cold, drop by drop, until it cooled his whole body and spirit. He is trying to move on and find someone who will actually love him back, since he gave everything to this relationship and she simply never tried.