I have a feature on my phone that I can pull my memory card and upload everything on it, text messages, pictures and videos I have taken, contact list, etc to my computer and then put my memory card back into my phone. I think this might be a feature to look into for those in your circumstances (still dealing with 'an off the wall' STBXAH).
If that had happened to me, I would not only have said I called the police I would have called them. Just like if someone threatens suicide I would call 911.
I am so sorry you had to go through that.
Love and hugs,