ArmorPlate108, thanks for your comments.

Have tried breaking the conversation but invariably she returns to it at the time, a week later or even several months. Seems to be a fixation in her mind that she has to grind me down because I don't think/behave like her. If I try the bathroom break strategy, she's waiting for me.

One thing she doesn't like or understand is that I've resurrected a hobby. I'm an aviation enthusiast and write a blog for a website. Lockdown would have driven me to distraction otherwise! I don't expect her to understand the techy bits but know she's also trying to deflect my attention away from that.

As for what she's told other people, my time will come to put the record straight but I'm not actively seeking those opportunities. They will happen of their own accord.