I was her favorite person, and our friendship ended 6 years ago. I want to see how she is doing and see if we could re-connect. However, I know that she was very harmed and angered by our friendship, because I had to distance myself due to the intensity of the friendship (it was too much for my mental health.) 
I don’t want to hurt her. If you can relate to your FP severing the friendship, would it be best for you to not hear from them again?