Wow, cool introduction, welcome!

Yes, sometimes hearing of a person close to you getting hit can make it very scary. I myself was hit and run by a person. I rolled over the hood and hurt my arm and my thigh in the process. The lady yelled at me for not riding on the sidewalk (she was coming out of a complex and without looking just drove out of it and turned right into me) and then she took off, leaving me there in the gutter.

The thought crossed my mind never to ride again but that lasted only about 3 minutes. I hobbled home, then was able to coast downhill the rest of the way. About a month later, the same thing almost happened with someone coming out of their garage and straight into the street. But this time I was able to swerve around them and they slammed on their brakes, putting up their hands in apology.

Glad you are able to not let that fear of your ex getting hit affect you and kudos to your riding that many miles now.

We do have an electronics and gadgets section, I bet you'd be a great contributor there.