There are a few moments where her grip tightens in his hand, but she never actually falls. Once they're situated on the overlook and she's pressed against him, she wriggles her hand between them and points up at the sky.

"Look." she whispers. "You see those three stars? That's Orion's belt. And there..." her pointing finger strays up and to the left Canis Minor," down and to the left, like a vee, "Canis Major."

Lydia looks up at those stars like they're the most beautiful things in the world.