From THE SOPRANOS Irregular Around the Margins:
Adriana mentions to Agent Sanseverino that Tony has been spending a lot of time at her club, Crazy Horse. Tony and Adriana have an awkward, sexually charged moment. Dr. Melfi tells Tony that his desire to resist a destructive impulse is a breakthrough. So he quickly moves to re-establish the platonic nature of his and Adriana's relationship, to their mutual relief. Christopher beats Adriana and literally throws her out of their apartment then shows up armed and drunk at the Bada Bing, looking for Tony. Tony points a .38 at his nephew's head and delivers an ultimatum. The two Tonys take Christopher to see the doctor who treated Adriana. He explains that Adriana's injuries support Tony's story and a mollified Christopher believes him.