Thinking about leaving relationship because evil mil

Mil keeps pushing and crossing boundaries and tries to make my husband feel bad about them. We do not send out a bunch of pictures or post a bunch of pictures of our newborn twins they just got out of the nicu 3 weeks ago and I do not feel comfortable giving photos of them freely because I know she will send them to a lot of people including husbands baby mama from high school who hates to see me happy and I just don’t feel comfortable with that. Sd 11 was over this weekend and didn’t seem too interested in them she played outside most of the time but husband did get a picture of her holding one and sent it to his mom she said oh that’s nice I need a picture of her with the other one and then proceeded to say it’s a shame I can’t put pictures of her with her sisters in a picture book this year your wife won’t allow it. I don’t like mil anyway because last month her and me got into a very bad argument (she opened and slammed my car door 3 different times and was hitting my car and throwing a tantrum) and then I went into preterm labor the first time a day later. We all went on vacation this summer and my daughter 9 was reading the Bible and mil asked where she was and my daughter told her. Later mil came to me and said when she asked my daughter what she was reading about my 9 year old “looked at her with hooded eyelids her eyes darkened and then she answered” she said there was anger in her eyes I was like yes while she is reading the Bible my daughter was briefly possessed to answer you. Give me a fucking break. We have gotten into different altercations before as well and I just keep losing respect for her. She is always trying to vilify me she wants her and sd to be a victim of some fabricated tragedy I’ve caused so badly and I think she has some infatuation with my husband as well. She made sure she wore pink to our baby shower and didn’t want to comply with dress code at our wedding. I’m at the point I’ve had enough of it all and want to tell my husband to go ahead and go back to his house in Texas and us live separate lives.

This weekend was sd weekend with us his mil dropped her off with not one but four 8 by 10 pictures of her and told me I needed to hang them up I hung one up and sent the others back I told her she’s so pretty other people need the pictures too so I’m currently waiting to be the asshole over that as well as sending back the “gift” she got for our twins which was a 7 lb heat up beanie animal thing. I think if she really cared she could have got them something from the baby section heck even a box of diapers would work not a useless microwaveable animal.