Belly and Conrad: Relationship Ending Explained

based on the provided text, Belly and Conrad do end up together in The Summer I Turned Pretty.

Here’s the evidence:

* Belly realizes she’s always loved Conrad.
* She frantically searches for him on a train to Brussels.
* She finds him and professes her love, saying she would choose him in infinite worlds.
* They exchange “I love yous.”
* The scene cuts to a party with Jeremiah and the family, implying a happy resolution for Belly and Conrad.