For many years, I believed that I was responsible for having injured someone,

Read another response by Michael Cholbi
Read another response about Emotion
For many years, I believed that I was responsible for having injured someone, and I accepted that. However, due to extenuating circumstances, while I believed that I was indeed responsible for having caused this injury, I was unable to feel guilty for it, and wondered why I was so callous. Decades later, I learned that I had NOT injured this individual after all! While I felt relieved to learn this, I also feel that it doesn't really absolve me of my apparent callousness during all those years when I'd thought I really HAD hurt her. In other words, I feel rather guilty now for NOT having felt guilty in the past! Philosophically and ethically speaking, what do you think?