O roteiro (e os romances) parecem concordar que Rey estava simplesmente fugindo depois de ter sofrido um choque terrível. Quando ela finalmente parou e pensou sobre isso por alguns segundos, ela percebeu que ela só teria que se virar e marchar de volta para o castelo.
Antes que ela pudesse completar seu pensamento sobre sua próxima próxima ação (que presumivelmente teria sido pedir a Han para deixá-la em Jakku) a frota da Primeira Ordem apareceu.
Script
[EXT. FOREST - DAY: Rey races through the forest and finally comes to a stop, overwhelmed and exhausted. At an emotional breaking point, she has no idea where to go, who to turn to. Then she HEARS A BEEP -- turns to see BB-8, catching up with her.]
Novelização Oficial
Overwhelmed and exhausted both physically and mentally, Rey finally slowed to a halt. Running solved nothing. Besides, she had nowhere to run to, and she could not run from herself. A familiar electronic chirp made her turn.
Novelização Júnior
REY finally stopped running, deep in the forest. She didn’t know why she had been running for so long; she had just felt the need. Now all she felt was exhaustion.
...
The astromech unit chirped a question of his own. He wanted to know where she intended they go. They? Just because the two of them had traveled together in the past, it didn’t mean they would do so in the future. Finn had reminded her of that.
But despite her pleas, the little droid refused to leave her. He would go wherever she went, to Jakku and back again if that’s what she wanted.
História de Rey
REY RAN THROUGH THE FOREST outside of Maz’s castle. It was too much. She was tired of people she barely knew telling her how she should feel. She just wanted to go home to her simple life on Jakku. It was safe there.