It is imperative to be a good defensive driver. Keep it up!
I worked in the field for years, and have evaluated many simple and complex cases for companies. Not just auto cases, but it is inevitable to have them because there are so many of them. Sometimes they settled when i didnt want them to, either.
Consider it to be a “business decison” they made and just move on.
A few years later though I encountered a scary situation. I was pulling out of an apartment lot and I looked and the car behind me was over to the right about two feet behind me. I stopped and pulled forward and saw him come up several more feet. So we just played chicken awhile. Finally I moved forward and just turned left instead. At the same time he gunned it to the right. If I had turned right we would have collided. If it had not been for that first fender bender I probably would not have even noticed the car behind me.