Dealing With Bullying

I have a situation where someone I love and have a relationship with regularly allows herself to verbally abuse and make threats to people, I have reached a point where I don’t want to continue tolerating this behavior. I am considering taking space from this person but I don’t know if I should wait until I have done the thought work, part of me says take space so you can process these emotions (there’s a lot that has built up over many years) and another part says have compassion and work on your thoughts even if other situations come up. Talking is out of the question, I have tried and now I’m mostly avoidant and afraid to be bullied. I feel exhausted and I just don’t know what to do anymore about this dynamic, changing the thoughts isn’t working for me and I’m struggling to keep my power with each day that passes.