Escalofriante literally means "chilling" or "hair-raising," and is often used to describe something scary that gives you goosebumps. It's a very powerful and dramatic word that you won't hear in a love song every day.
In this song, Carla Morrison uses it in a beautiful, unexpected way to describe a feeling of love so intense that it's physically overwhelming. She sings, "Es escalofriante tenerte de frente" (It's chilling to have you in front of me), capturing that breathtaking, shiver-inducing moment of being face-to-face with someone you adore.
This song is a beautiful and direct declaration of love. Carla Morrison isn't telling a complicated story; she's simply listing all the ways she adores someone. She finds joy in the smallest things, like caressing her partner and watching them sleep. She says, “Disfruto mirarte / Cada movimiento / Un vicio que tengo” (I enjoy watching you / Every movement / A vice I have), which shows how completely captivated she is.
She makes huge promises, like “No te fallaré / Contigo yo quiero envejecer” (I won't fail you / I want to grow old with you). But the most powerful lines are the ones that show total acceptance of her partner, exactly as they are. My favorite is “Tenerte paciencia / Tu locura es mi ciencia” (To have patience with you / Your madness is my science). She's saying that she loves every part of them, even their craziest quirks, and is happy to spend her life figuring them out.