Sounds like a win-win to me, especially if the dumb bastard has life insurance and she's the beneficiary.
Sounds like she is setting up a defense for when she offs him.
Husband has been abusing her for years, her proof is the posts she makes on line of her fear and his threats.
Stockholm Syndrome------she may claim, self defense, or, " I didn't know the gun was loaded. "
I saw a movie years ago about this very thing, Woman wanted to get rid of husband she put an orange in the leg of her pantie hoes and bopped her face with it causing bruises and welts to form.
Not that pain full, she was on a mission.
She would go to work and tell coworkers she ran into a door. She would confide to a select group of friends that her husband had beat her up. Interesting movie, she got away with it, strange ending.
I think it is the husband that needs to run for the hills, she the poster who if all she posts is true, and puts up with his behavior must enjoy the drama for some very sick reason. Perhaps she eggs him on to threaten her.
Seen this, woman that need people to feel sorry for them, it is possible to enrage a man to the point they will lash out and need to defend themselves from insults and or ridicule from anyone.
This Dude should run before it is too late. If she does not get him the police will.