"I had her vaccum and she wanted me to bring it over. She also asked if I would stop and get her some milk for her as well. So I did and went to dro it off for her."
OK...does that sound like going dark to you?
"She asked me if I would like to have some of her steak and I just simply said no thanks."
Very good! Proud of you!
"she instantly got ticked off. She became very upset and told me I would get the papers in the mail. She also aid that my attention span was about 5 seconds long and I am still trying to figure that one out."
OK, I"ll tell you what this is about. She is trying to pull her leverage. See she's OK with leaving you and then asking you to rub her back and get her milk.
You showed her that you have self-respect and that you are busy and OK without her. She is getting angry and threatening with divorce to try and rattle you to get you to be scared of losing her and therefore do anything for her (like stay whenever she says)
What you need to do is just keep doing what you're doing. Don't let her scare you into doing stuff for her with her threats.
Think about it. Does it sound at all remotely appropriate for someone to invite someone for dinner on the spot, and when they say thanks but I have other plans already, that they get angry at them and threaten them with something?
You've got to put it into that context to see it as anyone else would have seen that scenario.
I really don't think she will send the papers. Just don't chase her; you did NOTHING wrong. If you go dark and don't contact you, I bet she will realize from the silence that it was pretty irrational what she did, and she will call you, just like she did last time she threatened the papers.