Desahogas comes from the reflexive verb desahogarse, which means 'to vent' or 'to get something off one's chest'. It’s a powerful word for the act of releasing pent-up emotions or frustrations.
In this dramatic song, one singer accuses the other with the line, "Tú te desahogas conmigo" (You vent on me). This implies their partner isn't sharing love, but is just using them as an emotional outlet, a very specific and modern complaint in a breakup song!
Pimpinela are famous for their musical arguments, and "Esto No Es Amor" is a perfect example! It's a full-on breakup fight set to a pop beat. One person has clearly had enough and is walking out the door. They start by saying, "Ayer, sin ti yo me moría / Y hoy soy yo quien dice adiós" (Yesterday, I was dying without you / And today I'm the one who says goodbye). What a power move!
They spend the rest of the song schooling their ex on what love is by listing everything their relationship was not. They say love isn't about suffering, lies, or humiliation. The final blow comes when they reveal they know about the cheating: "En tu vida hay otra persona / Esto no es amor para mí" (There's another person in your life / This isn't love for me). The other person tries to argue back, saying things like "Tú me obligaste a mentir" (You forced me to lie), but it's too late. The verdict is in, and it's repeated over and over: this is not love.