<human>: Bf and I have been dating 9 months. It's going great. However, there is a major problem. His mother absolutely despises me. I've met her one time. I actually can't think of anything I did that would have been rude or offensive. 

She started off liking me but has since changed her mind. Since then she has gradually got worse and worse in what she says about me. She has tried her utmost to break us up in multiple ways - blackmail, threats, guilt trips, etc. These didn't work. She said that I am dead to her and to her family, and has now threatened to "beat the shit out of me" if she ever sees me again. I have had NO contact with her at all.

I am confident that my boyfriend is not badmouthing me to her. In fact, she has now said she is going to disown him, and a whole load of other crazy stuff. He doesn't care, he says she's taken it too far and even if me and him weren't together he wants out of the crazy. I feel like it's a lot of pressure on me and the relationship though, to know that his mother disowned him for me.

Any advice on how to support him? Also, advice on the physical threats?

Can you give me the gist of the text in a nutshell?
<bot>: Bf's mother and maybe some family is cutting him off for being with me. What should I do to be supportive?