Mom and bf drama... help :/

(Background on my mom) ~ * she was an alcoholic for 6 years. Shes 2 months sober right now. She has been through a number of relationships including a meth head drug dealer that stalked us, beat her, and almost killed her one time and put me and my brother in very dangerous situations several times. And this relationship went on for 5 years. Me and my little brothers entire childhood was basically her choosing men over us because we would beg her to leave them because it was constant fights because my mom has trouble getting along with people. and she would never leave. My mom would get drunk and destroy the entire house, pick fights with her bf at the time, and if she didn’t have a man there to fight with she would turn on me and my little brother, she would destroy my room and bust my phones because “she can because she paid for it”, she would always try to get me to fight her and I never would until one night I had enough she slapped me in the face and ripped my shirt off of me in front of a male friend she had over and I was super embarrassed because I didn’t have a bra or anything on so I fought back and me and her ended up with busted lips and missing a lot of hair and bruised knuckles. My grandma had to come get me that night. My mom has went to jail 3 times in the past year because the neighbors calling the police during her drunken rages. So yes I resent my mom for a lot of stuff she put me through.* Okay, so I’m 17 and 25 weeks pregnant and I’m not with my babies father. I got pregnant after asking my mom for 2 months to put me on birth control and she refused saying “I should be smart enough not to get pregnant.” And because “she was never on birth control and only has two kids” but she had a kid at 14 and 19 soo... I was with my babies father for 3 years and she knew we were sexually active. Well he broke up with me when I was 8 weeks pregnant because he “didn’t love me anymore” but he cheated on me our entire relationship so honestly I was a little relieved he broke up with me because I was so unhappy and insecure from getting cheated on all the time but I just never had the heart to leave because he had a bad home life and he basically lived at my house. Well after me and him broke up I started talking to this guy I had been friends with for about 2 years and we were in similar situations he was going to be a single father (his baby was born August 13th of this year and she’s absolutely adorable 😍) and we didn’t even mean to get feelings for each other but it happened and now we’ve been together for 3 months and I’m honestly so happy. He’s the best boyfriend I’ve ever had and he comes to baby drs with me because the baby’s father doesn’t, he’s helped me set up my daughters nursery, every pay day he takes me on a “date day”, and he never makes me feel less than enough even though I’m pregnant and don’t look that great. Well my mom absolutely hates him. The first time they met she started a huge argument with him because she said he could stay over at my house because we had a cookout and done fireworks and it was really late and we were watching a movie and had accidentally fallen asleep together and she told me right in front of him I “already had a piece of shit once so this time I need to raise my standards” and she was going off about how “disrespectful” we were because we fell asleep together but in my last relationship my ex moved in with us and we shared a room and slept in the same bed every night and it wasn’t an issue with her then and I wasn’t pregnant at the time and she knew I was sexually active with him which makes absolutely no sense to me. But anyways she had me all tore up and I was crying and he was obviously trying to defend himself from her calling him every name in the book and putting me and him both down. And from that day forward my mom has decided she hates him and that’s just how it’s gonna be. She has offered me 1,000 dollars to break up with him, she constantly nitpicks everything he says and does and she will have him so upset to the point he will just leave because nothing is ever good enough for her and tbh she’s like that with everyone, she makes small situations between her and him a huge deal just to try to cause drama, for example the other night she said “give me my charger” and he was using it and he was unplugging it out of the wall to give it to her and he asked me “is this yours or your moms because I thought this one was yours” and I said “no mine broke that’s hers” and apparently that was just so “disrespectful” he was asking me a question as he was handing her the charger. It’s not like he refused to give it to her. She told him he was welcome at the house whenever he wants but then when he’s here everything is an issue. We go grocery shopping for her, take care of the house while she’s at work, do dishes, take trash out, he’s helped her mow the yard, and basically do anything she asks us to do. She asked us if he comes over to not sleep in the same bed so we respected that and don’t sleep in the same bed but now she has an issue with us being “cuddled up” watching movies together and it’s “disrespectful and gross” which don’t get me wrong it’s her house and she can say whatever she wants but why wasn’t it “disrespectful and gross” when me and my ex done it? My bf has a job and we have offered to rent out my room and pay bills and stuff and when I asked her that her exact response was “shut up” and when I asked her if I can move out she says “you’re not going anywhere until you’re 18” and I won’t be 18 until June 2020. Ever since I’ve been like the age of 15 or 16 me and my mom just don’t get along anymore because she’s super controlling and expects everyone to bow down to her. And trust me I’m not the only people in her life that says this. My grandma says it, my brother, all my moms ex’s. Everyone that knows my mom personally knows she’s is very manipulative and controlling and she “nitpicks” and is “wishy washy” as my grandma says meaning one day something is okay and the next day that same situation is a huge deal. My mom expects people to be perfect and to bow down to her. She expects she can say whatever she wants to people and treat people however and they shouldn’t retaliate or say anything back but they should “respect her” And trust me my boyfriend isn’t perfect either. He has a hot temper and can have a smart mouth and be lazy when he comes in from work and plays video games with my little brother (which my mom doesn’t like) she says he should “be out working somewhere” and I’ll say “but he just got off work what do you mean” and she will say something like “so he should be out on a side job or outside working getting his hands dirty” my mom has even went as far as telling people she thinks he is beating on me and controlling me and my phone use and everything. My grandma came over worried to death about me because my mom told her that and I told my grandma it wasn’t true because it isn’t. He honestly just keeps his calm all the time and never says anything to her because he wants to be with me but there has been a few times he’s just snapped and said a few smart ass comments back to her. Im just so sick of being in the middle of them two. I love them both but I can’t take being in the middle of them anymore.