Hi AT1
It seems like you're looking for a time out. I think you can recognise that staying in a conversation with the partner may not be working out for you.
Here's a discussion you may find helpful:
https://bpdfamily.com/message_board/index.php?topic=84942.msg842177#msg842177Personally, this is a very helpful and solid discussion. Here's a taste of what you can find:
Now that I'm away, how do I deal with this feeling that I didn't do the right thing? Well, that feeling comes from breaking a conditioned response. You aren’t following their lead or allowing them to control you. Yes, there is uncertainty around this. Yes, they may become even angrier at you. That doesn’t change the it is a very important step towards taking care of YOUR needs for once.
This is a crisp description of what I felt when I was working at this. I wish I had read this when I first tried time outs. It's strange because I've been teaching myself to walk a path through the eggshells without breaking them--how is it this path involves breaking eggshells, but is actually the most effective path? You'll get answers here.
This is a very interesting type of response by the non, so I'm interested in hearing how things work for you and others here.