Took her virginity.
Then I broke up with her because she claimed she cheated on me.
But later said "I wanted you to think you could lose to me". She begged, but she had done this many times.
She said she wanted to have kids with me and loved me. And was upset I wasn't ready for kids.
She got with a rebound.
She was still emotionally attached to me while she was with him.
She even talked of getting back with me and it was clear she was still furious I broke up with her.
When her rebound fell apart, she contacted me. But she was also very rude and saying mean things.
But before I could say anything she blocked me on Whatsapp.
At this same time it seemed like she deleted half her friends list and all her pictures.
Over the next few months she deleted more friends. But during this time period she ignored my inquiries on Facebook.
So I contacted her ex rebound and inquired about their relationship, I sent him screenshots of her talking of getting back with me and her claiming she cheated on me.
I wanted him to clarify if he was this individual and if she had been playing both of us.
Rather, she instead deleted him, her best friends and completely went into hiding.
When I tried reaching out to her again a few months after that, she told me to never ever contact her again.

She's still completely cut off from nearly everyone. What am I supposed to do?
I asked a friend for advice and he said the one thing you can't do is fix another human being.

Obviously whether she cheated or not. What she did was manipulative and I told her that when we broke up. At this point since I never got a response, I'll never know if she did.
Thinking back now she always had a really hard time taking accountability for anything and always liked to change the subject. My recent actions of getting to the bottom of it probably caused her unbearable shame and paranoia.