LitCharts assigns a color and icon to each theme in The Sun is Also a Star, which you can use to track the themes throughout the work.
Immigration and the American Dream
Passion vs. Reason
Interconnectedness and Destiny
Isolation vs. Connection
Summary
Analysis
Daniel is ten minutes late when he knocks on Attorney Fitzgerald's door. Nobody answers, so he opens the door and discovers a sobbing paralegal. She tries to wipe her eyes when she sees Daniel and insists she's fine, though she's clearly not. She points towards Attorney Fitzgerald's door and refuses Daniel's offer of tissues or water. She tells him to tell Attorney Fitzgerald that he's wonderful, but she has to go. She starts crying again, which brings tears to Daniel's eyes. This makes the woman stop, and he explains that he's a sympathy crier.
The fact that Daniel is a sympathy crier suggests that some people are intrinsically more connected to other people than others, given that Natasha, for example, doesn't have such emotional reactions to others' emotions.
Active
Themes
The paralegal says that if she'd known how "this" would end, she wouldn't have started. She says she used to love fairy tales because princesses never do the wrong thing. Attorney Fitzgerald's door opens and he ignores the paralegal and Daniel's hand.
"This" presumably refers to Attorney Fitzgerald's affair with Hannah, which suggests that things are taking a turn for the worse as Fitzgerald and Hannah seek to isolate themselves.