Sorry to here about your bump. At least you weren't hurt - a car is always repairable or replaceable - skin and bone is not.
You will need to check that the insurance will continue to provide the courtesy car if yours is found to be unrepairable - most do not. That said, you should be still be able to claim reasonable costs from the other party.
At least she is insured - our solicitor has just confirmed that the 'gentleman' who hit us head-on recently is not
Hope you get sorted soon.