Natasha is good to her word. After her conversation with Sylvia, when the news breaks, she reaches out to Cesare—she leaves a message for him, letting know she'll be by around 1am, if he's free for a visit. He might not be, she knows that.

But she says it's about Sylvia.

She doesn't think he'll pass up the opportunity to gloat.

Whether or not he opts to join her, Natasha shows up at the hotel promptly and heads for the bar to wait.