I don't think I'm going to invite my mom to my wedding.
Why wouldn't you want to invite your mom?
She doesn't even believe that I have a boyfriend, much less a fiance. She always assumes things.
I understand your position, but it's hurtful to her if you didn't invite her to your wedding. She would be really upset.
She'll be fine.
I would rethink your position, as I really think your mom would feel hurt if you didn't invite her. I get your frustration with her false assumptions, but have you thought about sitting down and laying out the true reality of the situation?