I just finished reading 'This Summer Will Be Different' and it's a standalone novel. The story wraps up beautifully without any cliffhangers or loose ends that would suggest a sequel. The author focuses intensely on the emotional journey of the protagonist, Lucy, as she navigates a transformative summer. While some readers might wish for more about her future, the book's ending feels complete and satisfying. If you're looking for similar vibes, 'Beach Read' by Emily Henry explores summer romances with depth and wit, though it's not connected to this story.