I'm sorry to read of your circumstance.
Although feelings aren't expressed a lot on this forum (lots of members are too busy attempting to look "cool") those of us with experience can empathize.
There is a good reason why some of us are suggesting to end it and without any contact toward her.
We've already traveled down that path.
I can't speak for others, but personally... its' like you want to rationalize things in hopes of having things go back to "normal" ie; "there were more good times than bad".... "maybe she had a legitimate reason that I don't understand" .... "If I stick around, it will get better this time" etc...
And then when it's over, you go from being sad to being mad.
It's then that you want to "put her in her place" ...
You call, but you get voicemail and leave a long message. Or... you are up late at night and type a long (very long) e-mail and get all the things off your chest.
At first, it feels good. It's out of your system and you gave her a piece of your mind.
If she responds, she'll paint you as the "bad guy" and she will be the (so-called) 'victim.' You'll then doubt yourself. And then all that relief you felt will be gone and misery will set in.
Or.... she will not respond at all.
You'll then begin to wonder why she hasn't responded. Suddenly, all that "power" you felt will diminish and you'll experience misery again.
Even with the above advice supplied, you may want to tell yourself that you'll beat the odds and that your situation "will be different. " Lots of us have been down that path as well. It never works. And then, we reflect back and wished that we'd followed the advice previously given.
I do not type the above predicted outcomes to project an image that I'm some "know it all."
Some of us on this forum are here because we hope that we can prevent someone else from going through the things that we have already experienced.
Best of luck, friend.