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 homeland, a trip that Carmela had wanted to be a part of. Carmela reaches a low point with Tony's constant string of affairs and the two have a romantically-tense but "arms-length" relationship for a period. Each confides to separate friends that they are falling for each other but Furio, no longer able to bear the burden that the internal conflict is causing him (that of his feelings conflicting with his honor, as well as his respect to the "family" hierarchy), sells his house and moves back to Italy. This sends Carmela into a depression. By the end of the fourth