Piénsalo bien is a common but impactful phrase that means "think it over carefully" or "think twice." It's a direct and strong piece of advice.
In this song, the phrase is used as a warning to a lover who is considering ending the relationship. The singer is urging them to truly consider the consequences, implying that they might regret their decision later. It's a pivotal moment in the lyrics, highlighting the emotional weight of the choice.
Regulo Caro's "Piensalo Bien" is a powerful song about a relationship on the brink, where one person is clearly not ready to give up. The singer can't believe the other person's sudden change of heart, asking "que nos faltó si nuestro amor tan bonitos de miradas tan perfectas las noches que me daban" [what did we lack if our love was so beautiful with such perfect glances, the nights you gave me]. He's calling out their partner for not recognizing their own part in the problems, urging them to "reconocer también tus fallas" [also recognize your faults].
He's not willing to risk the happiness he has, but he's also not going to beg. He suggests they find a solution together, but if the other person truly wants to end it, he says, "dividamos el dolor" [let's divide the pain]. The repeated line, "piénsalo bien porque puede que te duela más a ti" [think it over carefully because it might hurt you more], is a blunt warning that walking away might come with a bigger cost for them. It's a song about fighting for love, but also knowing your worth.