Conrad’s Biggest Advantage Was Never Giving Belly Closure

Did Conrad stay in Belly’s head because he never gave their relationship a proper ending?
Think about their first almost-kiss. Belly and Conrad are standing on the dock on the Fourth of July. They move closer. Belly has wanted this boy for years. Then Jeremiah launches a firework in their direction, they jump apart and the moment is over before it actually begins.

That scene becomes their entire relationship. They get close, something goes wrong and the conversation is postponed until everyone is sadder or sleeping on a motel floor.
At prom, Conrad is terrified because Susannah is getting worse. He cannot explain that, so Belly thinks he no longer wants her. Outside in the rain, she gives back the infinity necklace while Conrad keeps trying to speak. Belly stops him because she believes she already knows what he is going to say.
Then comes the motel. Conrad lies on the floor beside Belly and finally admits, “I still want you. Of course I do.” By morning, Belly has kissed Jeremiah. Conrad takes everything back, returns the necklace and leaves because apparently emotional honesty expires at sunrise. Belly later describes the pattern perfectly: Conrad gives and then takes away.

None of these moments gives Belly a clean ending. They just give her another reason to wonder what Conrad was about to say.
This is where the Zeigarnik effect comes in. The popular version says unfinished experiences stay in our minds because our brains keep waiting for an ending. The science is slightly less tidy. A recent review found that unfinished tasks are not consistently remembered better, but people do show a stronger tendency to return to something that was interrupted. Basically, the unfinished thing keeps asking to be finished.
Belly and Conrad are one very attractive interrupted task.
But unfinished business is not the only reason people ship them. Otherwise, every cancelled coffee date would become an epic romance.
Belly and Conrad also have real ease together. They drive hours to see each other, spend Christmas alone at Cousins and remember tiny details about one another. Lola Tung described their connection as the kind where they can sit together, watch a movie and exist in the same place without needing to speak. That ease is what makes all the dramatic moments feel believable.
It is also why Season 3 can turn a peach into a romantic emergency. Belly gets juice on her chin, Conrad wipes it away with his shirt and suddenly everyone watching needs a minute. Later, Belly cleans a cut on his leg, he rests against her and she starts leaning towards him.

These two can make fruit and basic first aid feel dangerous.
Conrad also spends the season helping Belly plan her wedding to Jeremiah. He finds cheaper flowers, cooks for her, repairs the beach house and convinces Laurel to attend the bridal shower. He may struggle to say “I love you,” but apparently he can communicate through hydrangea prices.
Jeremiah does not get the same romantic protection.
Belly actually lives with his choices. They spend years together at college. They share routines, argue about money, search for an apartment and deal with Cabo and a wedding that slowly stops feeling like Belly’s.
Jeremiah has to survive ordinary life. Conrad remains connected to snow at Cousins, the infinity necklace, peach juice and everything that might have happened under better circumstances.
That does not prove Conrad deserves Belly more. It explains why comparing the brothers can feel unfair. Jeremiah is judged by an entire relationship. Conrad is partly judged by possibility.
Paris finally changes that.

By the time Conrad arrives, Belly has built a life that belongs to her. She is no longer the girl waiting for him to notice her. Conrad also stops hiding behind silence. He tells her he loves her, and when she cannot answer immediately, he does not take it back the next morning.
Then Belly runs to the station, boards his train and tells him she chooses him. For once, the choice is completely hers. Prime Video’s finale description places Belly in Paris confronting the life she thought she had left behind, while the finale itself ultimately reunites Belly and Conrad.
So the Belly and Conrad blueprint is not “first love always wins.” It is: grow up separately, stop speaking in riddles and say what you mean before somebody leaves the country.
Chemistry gave them three seasons of almost. Honesty finally got them on the train.