Belly Conklin from The Summer I Turned Pretty ends up with Conrad in the books.

In Jenny Han’s original trilogy, Belly and Conrad finally get back together after years of back-and-forth feelings, breakups, and growth, and they marry at the end of the third book, We’ll Always Have Summer.

The TV adaptation on Prime Video is still unfolding and may play with timing and details, but as of now it’s based on that book canon where her endgame is Conrad, not Jeremiah.