Gafitas is the diminutive form of gafas (glasses). In Spanish, adding the suffix -ita or -ito to a noun makes it smaller or 'cuter', often implying affection and endearment.
In the song's title and opening line, Karol G sings about her crush leaving their gafitas in her car. This small, personal object becomes a cherished memento that constantly reminds her of them, perfectly capturing the sweet, intimate feeling of a budding romance.
Have you ever found something someone left behind and kept it just to think about them? That's exactly what KAROL G is singing about here. She finds a pair of glasses in her car and it sends her spiraling into a full-blown crush. She holds onto them, she says, "para recordar lo bien que se te ven" (to remember how good they look on you).
This isn't just a small crush, though. It's a huge deal for her because, as she admits, "Hace tiempo estoy sola y no sé cómo actuar" (I've been alone for a while and I don't know how to act). This new person has completely changed her world, making her feel things she thought she'd never feel again. The song's biggest confession is its hopeful chorus: "No creía en el amor, pero por ti vuelvo a creer" (I didn't believe in love, but because of you I believe again). It's a super sweet song about how a new person can suddenly make everything, even love itself, seem possible again.