Advice? Or anything really I gotta rant 😭

Back story- Me and my boyfriend (I’m 13 weeks pregnant currently) have known each other since 14. We are 24 now. Him and his family used to live with my fam. We parted ways around 16 just to live life since his family had to relocate. During that time we obviously met other people I ended up have 3 kiddos with my baby dad. And he got his gf at the time pregnant In which she didn’t find out she was pregnant till 5 months pregnant and they were no longer together and I was already pregnant with his kid also by then.

The issues- in a fabulous world we’d all co parent and me and bf have worked super hard to get that way with my other kids dad and it’s been going fantastic!! Ex is due in a few weeks. She still wants to be with him and is using baby now as a pawn and punishing him for being with me.. she wasn’t going to keep the baby untill she found out we were dating and expecting my also. Now she’s a first time mom and he’s a first time dad. So I can fully understand that ya know this is rough for her also! As she is going into this as a single mom and I try soo soo hard to see her views as I was also a single mama and it ain’t easy! But she’s turned into someone so rude to him that he cries at night because he’s scared he won’t get to see his kid. Let me tell you the issues in bullet points 😂 (now before I read these keep in mine bf is a great man, works full time he trying a second job to help with our baby and there’s. Lives in a clean apartment with 2 other gentleman who are also very clean and quiet. This is her reasoning and crazy things she’s saying so he can’t see baby)

-if he doesn’t go to every appointment with her she claims he hates that baby, and is making a replacement with me. (I do encourage he goes to these with her, but work sometimes doesn’t allow him)

-Inorder to see his kid she wants him and his fam all to get vaxed, and other medical things, she doesn’t like his family so she says that mom and gma can’t be around baby…. I’m not allowed around baby untill I meet her multiple times (keep in mind him and I will be living together but I respect she wants to meet me and I’m all for it but she says I’m a bad mom already because I let my bf around my kids and “we haven’t been together long” but I’ve known him and his fam since kids and also I’m the most over protecting mom and made the measures to make sure that’s ok. But now she doesn’t like me at all and says that he should leave me.

- she wants me to take a paternity test or I can’t be around baby BUT she won’t take one… I’m so down to take one 😂😂 I have no doubts I only have been with him😂 but she won’t take one.

- NOW SHE won’t even go to mediation Bf was going to pay for because she says it’s “her rules or you won’t see my kid or you’ll only be able to visit when I’m around to bf”

-she sleeps on moms couch and says that bf living conditions are bad and he’s not allowed to have kid at his place😱 but she’s finding anything to not let him see the kid. She says that I order to see the baby he has to be with her cause she still wants him. We are lost and don’t know what to do. We are young I didn’t have this issue with my kids dad we co parent semi decently. I don’t want her to struggle or anything and I wish he to be a amazing mama even single but it’s hard some days for me to be nice about it becauee the things she says are so mean, even tho I know they’re out of spite and she hasn’t met me and doesn’t know me yet. But now he’s going to have to take her to court to even see his kid, she says he can be at birth (which I am 100 percent ok with) but ik she’s playing games and it’s sucks and he knows also he’s just scared ti say anything to her because he’s scared she’ll take baby away. Which she threatens daily. But we don’t know how to do anything like this court wise like this is crazy stressful she doesn’t want him to be the dad of my kid but idek if he’s the dad of her kid 😂😂😂 this is some crazy stuff and I just don’t know