Coraje is a fascinating word with a double meaning. While it can translate to "courage", in Mexico and many parts of Latin America, it's more commonly used to mean "anger" or "rage".
In this song, Ivan Cornejo sings the emotional line, "De coraje me llenaste" (You filled me with anger). He uses this powerful word to express the deep frustration and hurt of a painful breakup, making it a perfect word to learn for expressing intense feelings.
This song is a straight-up plea from someone who is absolutely not over their ex. Ivan Cornejo starts the song by admitting, "Ya me entró el alcohol" [The alcohol has kicked in], and he's filled with the desire to go out and find someone new. The problem? He knows her love was "irreemplazable" [irreplaceable]. He's so desperate he even considered moving far away just to escape the memories, but he realizes, "no me puedo ver sin ti" [I can't see myself without you]. It's a classic heartbreak situation, but the way he says it feels so direct and honest.
The whole song is him begging for a second chance. He keeps repeating "Piénsalo" [Think about it], asking her to imagine them starting over from scratch, forgetting the past, and falling in love again. He even acknowledges their past issues, suggesting they could be together "sin celos como la primera vez" [without jealousy like the first time]. He's completely fixated on her, using the fantastic line, "Sin pagar la renta vives en mí" [You live in me without paying rent]. He's basically saying she's stuck in his head, and he's begging her to come back, promising this time, "Hay que hacerlo bien" [We have to do it right].