just don't say anything about the dashcam and she will dig her own grave. as soon as the police are there, show the recording. Have fun with all other penalties like insurance fraud, false accusations, false police reports and so on
When she dropping hints on the road like she does in the bed
The softest bump in the world ....
But are you happy ?
Went from "cause I'm happy" to " what the fffuuuucccckkkkkk?"
Happened to me once too (me being the front person) don't be so harsh on her... I mean looks like she genuinely accepted her failure. (In my case I looked back but I still didn't notice the other car,.. was not focused)