Please be advised, MyPTSD is not a domestic violence crisis service. We are an international peer support forum for PTSD.
If there is a threat to your safety, then you need to contact local services that can assist. If you don’t trust the police enough to contact them, then you can contact your local domestic violence shelter or safehouse. You can find them using your search engine of choice. You do not deserve to be hurt because someone else can’t hack their grief and emotions. Most domestic violence crisis services can help considerably and they often have victim advocates that can help navigate all that is happening.
It’s not reasonable to expect an old professor find you a place to stay on Thanksgiving day in the US.
Planning violent self defense while refusing to even leave or call for help is also not reasonable and might be part of why the police are threatening to arrest one of you.
I strongly advise stepping away from continuing to drunk post online and to instead get on the ground help locally. It’s difficult to follow what’s going on, and none of us are there in person to provide the validation you are seeking here.