Mansion Beach by Meg Mitchell Moore
This novel is supposed to be a modern spin on The Great Gatsby, and follows Nicola Carr as she spends the summer on Block Island, where she is doing an internship as a marine wildlife researcher. She has left her previous partner and career and is taking her life in a new direction. She is staying in a small house that is owned by her cousin's wife's family. David is her favourite cousin, and they grew up very close, almost like siblings, including spending the summers at the lake in a family home. Now he is married to a real estate heiress, Taylor Buchanan. Taylor is very involved in her father's real estate empire and does whatever he asks of her, leaving her little time for David and their young daughter.
Nicola soon discovers that her next door neighbour is Juliana George, creator of a fashion-based social media empire called LookBook. Staying with David and Taylor is an old college friend of David's, Jack, who is a pro golfer, taking time for an Achilles tendon injury.
As Nicola continues getting a variety of job experience and exploring the small island, she also gets to know her neighbour Juliana and learn a little of her story of building her business and how her life has changed over time. She also finds herself courted by Jack, and unsure about Taylor given her standoffish attitude and how little time she is spending with her family. Nicola tries to avoid being drawn into any of the drama going on, but she also finds it all interesting, seeing these people in a world she is unlikely to ever live in.
The story is interrupted by transcripts from a podcast about what happened on the island that summer, but that part of it feels like it isn't really needed for the story.
This is an interesting tale of questionable relationships, social class, and misadventure.