Malvada translates to "wicked" or "evil." It's a strong, dramatic adjective that isn't used in everyday conversation as frequently as more common words for
The order of events is the whole point. By the time she comes back, he has already finished with it: "Yo no tengo la culpa que me quieras" [It’s not my fault that you love me], he tells her, and then the reason, "Cuando yo ya me he olvidado de tu amor" [When I’ve already forgotten your love]. That is not a plea. It is a timetable.
Why she lost him gets exactly one couplet: "Siempre quise quererte con locura / Pero tú me has pagado con traición" [I always wanted to love you madly / But you’ve repaid me with betrayal]. The chorus is far less polite, and it comes back until you can sing it yourself: "Vete ya mujer malvada / A engañar a otro hombre con tu amor" [Go away now, wicked woman / To go deceive another man with your love]. The injury is a kiss, which is a good touch: "Con tus besos has roto mi corazón" [With your kisses you’ve broken my heart]. When she turns up expecting to be waited for, the reply is flat: "Te equivocas mujer, porque es ahora / Que yo, ya no te amaré" [You’re wrong, woman, because it’s now / That I will no longer love you]. All of it rides an accordion figure you cannot sit still to, and halfway through someone shouts "¡Con sentimiento!" [With feeling!] over the break, which tells you how seriously Los Ángeles Azules expect you to take your own broken heart.