You are the man you are supposed to take care of the household not her. Also when you get ur new wife she will not be working for a couple of years. Thirdly, when you divorce, your wife will get spousal support from you. That is good for her.
You will get a letter with instructions on how to pay. Also it has been my experience whether you pay before or after you come. It is not a guarantee that you will get green card fast. It takes from 2-6 months to get it
Filing for a Green Card does not stop secondary Interview. They can be scrutinized at every entry. They can still be denied entry with Advanced Parole.
I am sorry that your relationship did not work but as you said that was only through text messages. From May to November what proof of a bonafide relationship do you have?
It does not matter her generalities are specific for vAWA. You have to live with abuser after marriage. They will know when she entered US married and divorced. If she lies about anything, they can prove it and send her to removal proceedings.