I don't own a car and don't have auto insurance.
I flew to Florida that day, rented a car, declined to pay a charge for auto insurance for the rental.
You should probably check with your own insurance company... lol
The reason 99% of people turn down rental insurance when they rent a car is because their personal auto insurance will cover it. In the future, when you rent a car, pay for insurance.
From what you have said here, I would say that you are on the hook for what it costs to repair the other auto, and likely the rental car you had...