Done and done
It was the right thing to do and so I did it, even though it was difficult and awkward and annoying and I’d have greatly preferred to do nothing at all and let it naturally resolve itself. I shouldered the burden and did the difficult, awkward, annoying thing and I accepted that you didn’t see it that way at all. I knew you’d be unhappy, and unhappy you were, unleashing a torrent of abuse that I had pretty much expected, although I was still caught off-guard by the vehemence and intensity of your vitriol. I made my apologies and you dismissed them as insincere and it’s done.
Doing the right thing is rarely as uplifting as its made out to be, but it’s done.