Using Suzana's numbers, I think you were asking about admit (4) and confess (1). Although the dictionary defines these differently, they mean essentially the same: especially in your text, as they are being used poetically. In practice, the words are usually found in specific contexts: 'Admit' is used in the courtroom and in journalism, often to make a witness or statement look bad, as if they hadn't wanted to say something even if they had been willing to. 'Confess' is mostly used to describe telling the truth after a police interrogation, or the act of confession that Catholics perform weekly with a priest.

Admit : ( 1 ) Allow someone / something to enter Each ticket admits two persons to the party. ( 2 ) Accept someone into a hospital as a patient or into a school as a pupil He was admitted to hospital with minor burns. Our school admits seventy new boys and girls every year. ( 3 ) Have room for someone/ something The theatre admist only 400 persons. ( 4 ) To recognize something as true often reluctantly He admitted his mistake. ( 5 ) Leave room for something – allow the possibility of something The plan does not admit of improvement. Your conduct admits of no excuse. Confess : ( 1 ) Say formally that one has committed a crime or something wrong The prisoner confessed that he had murdered her. The politician confessed that he received bribe for this project. In your case, it's number 3 - she should recognize the truth and tell it once forever.

There's another important usage difference between this use of "confess" and "admit". "Admit" is always a so-called transitive verb: you have to "admit <something>" so you can't just put "admit" at the end of a sentence. In contrast, "confess" doesn't have to be used transitively, so you can say either say "He/She confess <something>" or just say "He/She confessed". If you were using admit, you'd have to say "He admitted it".