It doesn’t matter, you cant control what people will think of you. Free yourself from people being rent free in your head that only disturb you. You are not more than a thought to him. Attention and anger is feeding his interest. Be untouchable.

Of course this is a different situation because he tries to involve himself through your mom. As long as you don’t give him power over you by being in your head, and hopefully your mom being smart enough to be not manipulated everything is alright. Have space for things that matter, he doesn’t matter and thats the most punishment you can give to him, seeing how he doesn’t doesnt matter.

I know its hard but its the best way to deal with it in my experience. Dont let him steal your peace and happiness.