Thank you for writing your query to YD, it takes courage to seek help
I can sense the pain you are going through from your message and this indeed is a difficult phase for you. I can see in your message here that you did your best to make her stay and so both of your parents, but it is not working. I understand whatever happened is very unfortunate But when it comes to Relationship/ marriage, it is a two way street. No matter how hard you try and make efforts , but if the other person is determined in her decision, you can't make it work all by yourself.
Try to communicate with her , how she wants to proceed with this, if possible , you both can go for couple counselling and discuss it there.
You can also connect with experts in the platform, they will help.
Expert , YourDOST