We'll Always Have Summer is the series finale to The Summer Series written by Jenny Han. It was published on April 26, 2011. It stayed on the New York Times bestseller list for over a month and was a national hit.
The story takes place two years after It's Not Summer Without You where Belly has finally made her decision and picked to be with Jeremiah. However, after discovering a horrible mistake he made and never told her about, she is left questioning her feelings once more - but for the final time.
Summary
Summary 1: It's been two years since Conrad told Belly to go with Jeremiah. She and Jeremiah have been inseparable ever since, even attending the same college-- only, their relationship hasn't exactly been the happily ever after Belly had hoped it would be. And when Jeremiah makes the worst mistake a boy can make, Belly is forced to question what she thought was true love.
Does she really have a future with Jeremiah? Has she ever gotten over Conrad? It's time for Belly to decide, once and for all, who has her heart forever.
Summary 2: Belly has only ever been in love with two boys, both with the last name Fisher. And after being with Jeremiah for the last two years, she’s almost positive he is her soul mate. Almost.
While Conrad has not gotten over the mistake of letting Belly go, Jeremiah has always known that Belly is the girl for him. So when Belly and Jeremiah decide to make things forever, Conrad realizes that it’s now or never—tell Belly he loves her, or lose her for good. Belly will have to confront her feelings for Jeremiah and Conrad and face the inevitable: She will have to break one of their hearts.