Granite, I can tell you that I have moved my chair many many many many times. T has never told me that I can't. I have been angry and pushed it back against the wall behind me, I have changed the direction that the chair was pointing. One time T said something that unexpectedly triggered me and I spun the chair around while I was still seated. I don't even think I could perform that feat again if I wanted to. It's not a wheeled chair!

She may be trying to give you more space because she knows you are scared.

The best way to find out is to ask her why the chair is in the corner.