I honestly have no clue, I'm still trying to figure out what you're apologizing for...

I know this though, if you were my friend, I'd tell you to walk away and not look back.

Regardless of what may or may not be up with her, she's in no position to be a healthy addition to your life.

May be an over simplification, but my bf has a good boundary he's taught me to implement: If someone does not benefit, enrich or add to your life, then the alternate is that they are robbing you...

This girl sounds toxic, whether she means to be or not, and sooner or later that toxicity spreads and infects whoever is closest. Toxicity eventually robs you of all that you thought was good.

Get rid of the toxic robbers and find people who feed your soul.