I should have looked back more often.
I don't know where I lost her. She was there five minutes ago. And now she's gone.
Did she get stuck at a light, maybe miss a turn? I told her to follow me. It should have been easy. There isn't even any traffic going this way. Maybe I should have gone slower? I don't know.
What do I do now? Wait? Go back? But where to? Better to keep going. She'll make her own way, I guess. Maybe ask someone for directions. Though it's late, and there's no one on the streets.
It can't be helped, I suppose. I keep glancing in the rear view, hoping to see her headlights, hoping it's all a mistake and she's still coming up behind.