Chula is a versatile Spanish slang term, particularly common in Mexico and the Caribbean, that can mean 'cute', 'pretty', 'cool', or even 'hot' depending on the context.
In this song, Dalex uses chula to describe a woman who has become even more attractive and confident after a breakup. It's a vibrant and engaging word that captures a modern, appreciative sentiment, making it more interesting than just 'linda' (pretty).
Dalex's '+Linda' catches a woman right after a breakup, not moping around but leveling up. The opening lines set the scene: 'Hoy cambió de pensamiento' ('Today she changed her mindset'), and her ex texts an apology, but as the hook says, 'Pero que ya no hay tiempo' ('but there's no time left for that').
From there it's Dalex noticing the glow-up. She was already pretty, but now 'Se puso más linda' ('she got even prettier'), and he can't stop watching: her Instagram used to be private and now it's public, and he admits 'Fanático de la foto que publicó' ('I'm a fan of the photo she posted'). The song sits in that specific moment: someone moving on loudly enough that a guy on the outside starts paying attention, half flirting, half just watching.