The verb arreglar literally means "to fix," but its meaning in this song is much more nuanced. It's the key to the catchy hook, “Peleamos, nos arreglamos” (We fight, we make up).
Here, the reflexive form arreglarse means to resolve a conflict or to make amends. This single word perfectly captures the song's theme: a fiery relationship where conflict is always followed by resolution. It's a fantastic, colloquial use of a common verb that you'll hear in everyday conversation.
J Balvin gives us a super fun look into a relationship that's all about passion and drama. The whole song is a back-and-forth between fighting and making up. He lays it out right from the start: "Peleamos, nos arreglamos / Nos mantenemos en esa pero nos amamos" (We fight, we make up / We stay in that cycle but we love each other). It's a cycle of arguing and then fixing things, but underneath it all, there's a lot of love. He can't imagine his world without her, saying "Qué pena me daría / No tenerte en mi vida" (What a shame it would be / Not to have you in my life).
He spends most of the song trying to calm his girlfriend down because she gets jealous when he's out. He insists he's not doing anything wrong, explaining he's either working for their future or just hanging out with his friends. He tells her, "Nena, nena, tranquilícese / Que en la calle a nadie besé" (Baby, baby, calm down / I didn't kiss anyone on the street). He even admits they're total opposites, but that's exactly why it works: "Somos polos opuestos y por eso nos gustamos" (We are polar opposites and that's why we like each other). It's a sweet and funny defense of a chaotic but loving relationship.