Interponen comes from the verb interponer, meaning "to interpose," "to interfere," or "to get in the way." It's a more formal and less common word than simple verbs for
This song, "Decide" by La Maquinaria Norteña, is all about a person who's had enough of someone playing games with their feelings. They're tired of the uncertainty and the lies, saying, "creo que tú estás jugando con mis sentimientos" [I think you are playing with my feelings]. It's clear they see through the deception, noting, "veo en tus ojos es la mentira cuando dices te quiero" [I see the lie in your eyes when you say 'I love you'].
The singer is putting their foot down and demanding a decision. They're not going to let this game continue, stating, "no voy a permitir que siga este juego" [I'm not going to allow this game to continue]. It's a powerful message about valuing your own time and emotions, because, as they say, "el tiempo... hoy ya se está terminando" [time... today is already running out] for the love they have to offer. It's a blunt and honest call for clarity!