MIL said she won’t come to our wedding

My fiance is visiting them this week, he visits every few months and I don’t go because I won’t stop him from seeing his family, but I have no interest being around people that can’t sit normally around me. My presence irritates his mother and she doesn’t know how to fake it.

-Comments and disrespect indirectly. Exclusion and ignoring my conversation.
- She rushed her daughter wedding to be before us after we sent our save the date.
- Nosey about wedding info prices my ring and everything.
-trying to gaslight people into thinking I look like a woman she wanted her son to marry. ( She decided her son should marry her the week he met me) lol
- Also the most recent thing is she cut his relatives off because they follow me on social media and we talk normally.
-I get invited to events and dinners normally from family members but my wedding is in few months so I will start going after the wedding when we are officially married.
- Also shes just a weird woman whenever I post things on social media whether with my fiance or alone. She will reach out just to check in or talk about her daughters wedding.
- Her daughter said we stole her thunder and decided to have a wedding that requires a long flight which it is her problem on why people won’t show up.

I feel bad for my fiance because MIL and his dad wouldn’t show up to our wedding but his dad said he would give him a wedding gift. A lot of his guests are coming. We have over 130 guests Im not concerned about attendance.

Does it look bad on us or me that they aren’t showing up? They made it clear they don’t like me because I never tried with them and I sent wedding invites with no permission.

I never tried because I met them twice and they were disrespectful and weird. They also wanna keep holding the disapproval as a form to put me down and feel rejected. It bothers me sometimes but I won’t let people control me or beg them to because I won’t put myself in this position regardless.

My fiance is amazing. He cut them off for a year and whenever his mom brings me up he tells her any word about me she won’t see her son again. Now she doesn’t even try to mention me because shes aware her son isn’t on her side and she made it clear “You chose your wife over your mom”

How do I get over the fact they want me to feel less publicly by holding approval? Would it look bad that they aren’t coming to our wedding?