INGO, I'd like to apologize for not apologizing for anything that I should have apologized for. If my apologizing apology isn't accepted, I apologize for the unapologizing apology. I hope we can still be friends. If not, I apologize.
One day, you'll be sorry you ever apologized for not apologizing
...but by then it will probably be too late to apologize.
I wouldn't want to be in your shoes on that day!
(Unless you have some exceptionally stylish and comfortable shoes, of course.)