In The Summer I Turned Pretty season 3, Laurel Park gives Belly Susannah’s letter on her wedding day.
The letter appears in episode 8, “Last Kiss,” during the crisis surrounding Belly and Jeremiah’s planned wedding. Laurel gives the letter to Belly after Jeremiah has gone missing on the morning of the ceremony.
The letter’s significance is complicated by an accidental mix-up. Susannah had written one letter for Jeremiah and another for Conrad, but the envelopes were switched. Jeremiah initially receives the letter intended for Conrad, while Conrad learns that the letter he has is actually addressed to him.
Laurel is Belly’s mother and Susannah’s longtime best friend. Her role in delivering the letter connects the wedding-day drama to the families’ shared history and Susannah’s continuing influence over Belly and the Fisher brothers.