LitCharts assigns a color and icon to each theme in Harry Potter and the Cursed Child, which you can use to track the themes throughout the work.
Parenthood
Time, Mistakes, and the Past
Friendship, Family, Love, and Bravery
Reputation and Expectation
Death and Sacrifice
Summary
Analysis
In Hermione’s office, Ron tells Hermione that he can’t believe that there are some realities in which they’re not married—they’ve been together so long. He says that he wants to renew their vows, because they were so young when they got married and he still loves her deeply. She smiles and kisses him at the sweet gesture.
This scene puts a bookend on Ron and Hermione’s relationship, after going through so many timelines in which they aren’t married. This timeline (and Ron’s proposal) highlights the importance of love in their lives, as it makes them both stronger and more successful people.
Active
Themes
Just then, Harry, Ginny, and Draco walk in, explaining that Albus and Scorpius are missing again and Harry is still having terrible dreams. Hermione says she’ll summon the Aurors, but Ron says he was having a couple of firewhiskies with Neville in Hogsmeade and he spotted Albus and his beautiful older girlfriend along with Scorpius on the owlery roof. When Ron describes the girl’s silver and blue hair, Harry realizes that it’s Delphi Diggory—this is about Cedric again.
The play has illustrated how, over time, Draco has become aligned with Harry. Following the conversation about their need to be better parents to their sons, they are putting their past rivalries behind them in order to focus on repairing their relationships in the present.