A different type of apology

My ex-girlfriend and I broke up a little over a month ago. We've kind of been going back and forth since with trying to gain an understanding of why things didn't work. I had apologized for my shortcomings, apologized for not following through and apologized for not prioritizing our relationship while my divorce was being finalized.

Things still were confusing for both of us before something finally clicked.

I had apologized over and over for all of the things I did wrong, but never once apologized for how those things made her feel.

I mailed her a letter. I'm hoping this will provide clarity and closure for both of us. But something tells me that our story isn't over yet.