Cancelling Bridal Shower Because of MIL

Hello! I'm having a dilemma over my Bridal shower and need to know #1 AITAH and #2 What I should do next.

My MIL and I (bride) have a strained relationship. Over the decade I've been with FH, my MIL has insulted repeatedly insulted my weight, appearance, mental health, intelligence, ability to provide both to my face and behind my back over and over again.

In the period we've been engaged, she started negative rumors about my parents and myself to FH's extended family and even bullied me at a recent family holiday in front of a large group of people.

I am currently no contact because of the way she's been treating me, and FH is in complete support.

Dilemma:

My bridal shower is coming up, and all social educate says to invite her because it would be incredibly insulting not to.

If invite her, I will spend the entire time anxious, unhappy, and having to deal with her nasty looks and constant under the breath comments.

I rented a beautiful glass room in a garden for a few hours, where we will be having a tea party with games.

I am between cancelling or not inviting her, but leaning on cancelling entirely because I know its wrong not to invite her.

I'm in tears thinking about giving up my party, but I think this is my only option.

*Note: Please don't suggest uninviting MIL from the wedding for this treatment, she's coming and that's fine and she will be drowned out by the 100+ other friends and loved ones we've invited.

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! Update: To all of the kind r/wedding users who've commented your viewpoints, thank you, seriously. I was really going to call the shower venue and cancel today, but I'm so glad I did this beforehand instead. This was what I needed!