Fíjate literally means "notice" or "pay attention," but the phrase Fíjate que sí is a fantastic colloquial expression that means "As it turns out, yes" or "Well, actually, yes." It's used to confirm something that might be surprising or contrary to what's expected.
This phrase is the entire punchline of the song. After pretending he's completely over his ex, the singer reveals his true feelings with the line, "Si crees que te miento... pues fíjate que sí" ("If you think I'm lying... well, as it turns out, I am"). It's a clever and dramatic twist packed into a common conversational phrase.
Fíjate Que Sí swings between swagger and vulnerability, inviting us into the messy aftermath of a breakup. At first, the singer boasts that he has moved on: he barely remembers his ex, he already has someone new, and life is so much better without her. The lyrics fire off confident claims—“No te necesito” and “Fácil fue olvidarte”—as if each line is a victory lap.
Yet every bravado-filled verse cracks open to reveal the truth lurking underneath. The repeated punchline “pues fíjate que sí” (“well, actually, yes”) exposes his real feelings: despite all the chest-thumping denials, she still owns his heart. The song becomes a playful tug-of-war between pride and lingering love, showing how hard it is to silence genuine emotion even when we try to cover it with loud declarations of independence.