That sounds incredibly scary. I am so glad you were ok!! Once (because I didn't know the layout of a town, it was pitch dark, and I wasn't really paying attention as was trying to calm down my manic and upset friend) I turned the wrong way onto a motorway

the shock of realizing what I'd done was mad, but we were ok because the cars were all far away and I could swing round the right direction.
So I have an idea how much that sort of thing can fry your nerves and why you might need to spend time talking about it and smoothing it off in your memory. Did you want to talk about it in session for the second or third time and THEN she suddenly came out with saying she didn't believe you? Or am I getting it wrong?