I don't understand why so many modern women still change their names when they marry.
I changed mine because it made better anagrams, @Somatronic!
Even though my ex turned out to be an abusive shit, put me through hell for years, and made almost £100k out of me on our divorce, it has never occurred to me to feel bitter or angry about still having his name. In fact, I quite like it, because I suspect it might piss him off that I still use it.
It's my name now, every bit as much as it's his. Anyone who's known me for less than 24 years only knows me by that name.
When I meet someone who knows him, but has never met me, and they ask if we're related (we live in the same small town, so this is not uncommon), I just laugh and say "Not any more!".
I wonder if your anger about a surname might be displaced anger at everything that's happened, because it's also something that you can change? If you think it'll will help, hyphenate it with your birth name so you'll still show in online searches etc. But probably be better if you can learn to live with it. I think of still using my married name as a big "fuck you" to my ex, and it rather pleases me.