Nutjob MIL
TW: SA
My husband (34M) and myself (34F) have been together for 16 years-almost married for a year. I just had our son about 6 weeks ago. I'm struggling to get along with my MIL. She has always had entitlement issues and main character syndrome, but we had a decent enough relationship until around six years ago. A backstory to how this all began: she became a MAGA spook around covid and during that time went off on drunken tirades about our life choices (ie college education, voting for Biden, ect). I told her at the time that we were just doing what our parents asked us to do as kids, and her response was to call me a bitch. This same evening she discussed about how Donald Trump was saving the children (essentially Q anon conspiracy) and to my horror she accused a family friend of molesting my husband as a child. I was so horrified at the conversation that I excused myself to pull myself together. My husband joined me and later discussed that the allegations are false and that this wasn't the first time that she has accused family members (on his fathers side-they had an ugly divorce). I told him I support him no matter what has happened to him but am horrified that she would fabricate such extreme lies.
Since becoming pregnant and having my son, I'm struggling more than ever to not be resentful towards her. Once she found out we were having a baby, she bought an RV and moved it 5 minutes outside of our neighborhood (we live 5 hours away) with the expectation that she would come help me with the baby once I had him. I explained to my husband I didn't want someone like that around during a vulnerable time, and my husband was supportive in that I would choose the support system that I needed. We didn't tell her my due date or that I was being induced. Unfortunately she found out I was in labor through the grapevine so she was very angry with him when he called once our son was here. She never once told me congratulations, checked in on me during my high risk pregnancy, or after I had him (failed induction with c-section) which is now compounded the resentment that I feel towards her. When meeting our son last weekend, she didn't acknowledge me and held the baby for over an hour while I sat on the couch uncomfortable. She took a picture and posted it as her FB profile picture without asking even though we have decided that we will not be posting our child on social media. There have been other instances where she's been insufferable but for the most part dealing with her is a death by a thousand papercuts.
My husband is her only child and is really non confrontational (more a shove it under the rug type of guy). He understands that his mother is difficult and has always just dealt with it and been VLC, but I'm finding it difficult to even be cordial anymore. I would never ask to go NC (even though I would if it were my mother) but 95% of our arguments in the last year have been because of MIL's behaviors. She puts him in the middle by only complaining to him knowing he doesn't like the confrontation and will never reach out to me. He tells me we are on the same team/page but it's very difficult to bring my son around her with how our past encounters have been. I feel bad for putting him in the middle, he's dealt with it his whole life. Am I the asshole for dreading being around her? Any advice on how to deal with her entitlement issues?