The Sopranos ends, the woman reveals herself as an FBI agent and tells Adriana the only way to stay out of prison is to become an informant. Adriana agrees and starts sharing information with the FBI. Carmela, whose relationship with Tony is tense due to financial worries and Tony's infidelities, develops a mutual infatuation with Furio Giunta. Furio, incapable of breaking his own moral codes and that of the Neapolitan mafia, clandestinely returns home to Italy. After Tony's former mistress calls their home, Carmela throws Tony out. Tony is approached by Johnny Sack with a proposal to murder Carmine, which Tony turns
Carmela Soprano season, Tony and Carmela separate after Tony's former mistress Irina Peltsin calls the Soprano home, talks to A.J., and informs Carmela that Tony slept with Irina's cousin and Junior's nurse, Svetlana Kirilenko. Carmela even begins dating A.J.'s guidance counselor, Robert Wegler, and pursuing divorce proceedings against Tony, but is drawn back to her husband by financial concerns and difficulties in rearing A.J., as well as a difficult breakup with Wegler, who correctly accuses Carmela of using sex to manipulate him into giving A.J. special treatment in school. At the end of the fifth season, Carmela agrees to reunite with Tony