There isn’t an easy answer to this, unfortunately. You’ve tried to address the issue calmly and rationally, and it sounds like you’ve hit a brick wall.

I don’t think your boss’s attitude is going to change without dramatic intervention from someone higher up. It’s a question of whether you think you can get that support from higher up - and even if you do, you face the age old problem of then potentially having to go back and work with that boss - unless your claims are sufficient to have her removed from post, or you moved teams. In the latter case it then depends on how receptive your new boss is, and will they know the history of your current issues.

From my experience, there’s no happy ending in this scenario. I know you said you don’t want to move, but you have to balance up the short term pain of finding another job, against the continual daily war with your current boss. Which is the lesser of the two evils? Or, you try and find a way of ignoring the situation with your current boss in a way that allows you to continue working effectively. Again, if that can’t happen, you have to balance up your options.

As an aside, what is it, do you think, that your boss likes about the people she is buying roses and team lunches for?