Rompecabeza' is a colloquial, shortened form of rompecabezas, which means "puzzle" or "jigsaw puzzle". It's an engaging word that paints a vivid picture.
In the song, the lyrics state, "Entras en mi mente y la conviertes en rompecabeza'" (You enter my mind and turn it into a puzzle). This metaphor beautifully expresses how the person's presence makes the singer's thoughts complex and perhaps a little chaotic, yet intriguing, much like a puzzle that needs to be solved.
Have you ever been so smitten you're almost trying not to fall in love, even though it feels inevitable? That's the fun, playful vibe of Efecto Pasillo's "No te enamores" [Don't fall in love]. The singer is totally captivated, admitting, "Si te has metido en todas mis canciones" [If you've gotten into all my songs] and "Contigo puedo tocar las estrellas" [With you I can touch the stars].
But there's a charming hesitation, a desire to take things slow, as they say, "prefiero hacer las cosas poco a poco" [I prefer to do things little by little]. Still, the pull is undeniable! They want to "emborracharme con tus besos pronto" [get drunk on your kisses soon] and dance until "la aurora ponga el sol en tu sonrisa" [the dawn puts the sun in your smile]. It's a sweet, energetic song about the exciting, slightly overwhelming feeling of new love.