Natasha finds Daniel sitting on a bench outside the office building. She feels strangely gleeful and her smile is huge as she slides onto the bench next to him. Daniel makes a show of covering his mouth with his notebook and explains that he got in a fight. When Natasha sees his bloody face, she realizes that he fought with Charlie. He refuses to tell her what they fought over, but does admit that it was about her.
It's worth noting that as Natasha and Daniel's relationship progresses throughout the day, they gradually move from connecting only with each other to forming other connections with other people as well. This shows that even a relationship between two people is still part of a larger web of connections.
Natasha apologizes for not telling him about her impending deportation, and Daniel admits he was just upset to learn that something uncontrollable was going to tear them apart after everything that brought them together. Natasha tells him about her trip to the museum and her thoughts on how small falling in love seems compared to the formation of the universe, but she's glad when Daniel doesn't agree with her.
When Natasha is glad that Daniel thinks differently, it suggests that she's finally becoming more comfortable with the fact that destiny can exist alongside determinism, and romanticism can exist alongside science and reason. She's developing a more balanced view of the world.
Daniel takes Natasha's hand, kisses her palm, and asks what her good news is. She explains that her lawyer thinks that he can fix her issue. Daniel is surprisingly skeptical, but Natasha cries hopeful, happy tears. She realizes that she wants to make a phone call and she calls Lester Barnes' office. She asks him to thank her security guard, Irene, since the fact that Irene held her up and made her late that morning started the entire chain of events and brought her to both Attorney Fitzgerald and Daniel.
Natasha's call to Lester Barnes is a way for her to pay forward her newfound sense of connection, as well as a way of recognizing that destiny was at work today. Though Natasha is entirely unaware, the fact that she saw Irene, remembered her name, and made this call will be an important event in Irene's life given how lonely Irene feels at this point.