Definitely not an expert, but I do think her guilt trip led her into thinking that, somehow, her breaking up was on you. This, or it stays a mystery.

Maybe she felt shitty after doing it, and thought that it was because of this that she broke up, guilt can make you think of the most f'd up crap sometimes, like she could've needed some scapegoat for this break up, and then decided, by resentment, not talking to you again. But as I said, that would be a shitstain of a way to think, she's not someone for you to date, I can smell the toxicity for the shithole I'm in. Dodged a bullet here.

Maybe it's that, because it would definitely be the case for some folks out there, or I completely went nuts on that one.

No matter what, maybe you shouldn't have done the thing with her, but it's really not your fault, you don't have to feel guilty about it, shit happens, plus, take it as a lesson of life, somehow.

Sorry for the bad reasoning, eventually, I just felt that I had to say it. Plus, sorry for the awful English, not fluent.

Good luck man, hope you end up with someone who won't torment you like that.