Yes, Clouds_and_Sun, there are people who "feed" on other people's discomfort and misery. They lie in wait for the vulnerable and pounce. You have every right to be tired of being bullied.
I never learned how to deal effectively with such people. I wish I had learned in the days when I had more energy and the ability to focus.
Wishing you internal calm.
__________________
My dog
mastered the "fetch" command. He would communicate he wanted something, and I would fetch it.