Divorce step kids

I guess it’s not really a divorce because we aren’t married but we live together and have a kid together so it’s the best word to sum it up.

I want to leave my boyfriend. And the only reason I haven’t left yet is because my boyfriend is the most amazing perfect person in the world and I wouldn’t want to live a life that wasn’t with him. I can’t live with his son anymore though. It’s been two years and I am out of energy. 2 years ago I was 7 months pregnant and my boyfriend told me he was turning the second bedroom into a room for his son. My boyfriend has 5 kids from his first marriage, his son is 12. He never asked me how I felt about his son moving in. Before this we had the kids 50/50. And the girls we still have 50/50 but the boy lives with us full time and has since I was 7 months pregnant. I told my boyfriend who works 6 days a week that it was really stressful being home alone pregnant with him son all day couldn’t he still go to his moms one or two nights a week. Nope. I told my boyfriend I’m really stressed out I have a newborn and your at work all the time and I really need your son to go to his moms one night a week. Nope. I told my boyfriend, look the baby is starting to crawl and your son leaves a mess everywhere and won’t help me clean. The baby is going to get into something i need help. Nope. I told my boyfriend look the baby is starting to walk it’s exhausting chasing him all day I really need a break. Nope. Just nope nope nope. And before you all get into the he’s a 12 year old boy they are loud and messy. This kid has the worst temper, and he is beyond spoiled. If I ask him to take out the garbage it ends with him screaming at me and slamming doors. If I tell him he can’t punch his sister in the face it ends with him screaming at me and then sitting on my bedroom floor telling me “you don’t pay rent here shut up.” Causing me to be 30 minutes later to work because i can’t get dressed with a 12 year old boy in my room and I didn’t feel safe leaving my son alone with him. I have had to take my son out of my own house so many times because I didn’t feel it was a safe environment for him. You want to know what the last fight was about I wouldn’t let him sleep in the living room at 5 in the afternoon because that would mean I’d be stuck in my room with an 18 month old for the rest of the night. And every time we have a fight either him or I end up calling his dad whose at work who then just ends up yelling at me for bothering him at work and telling me to just let him sleep in the living room. Iv had to literally leave my house and drive to his moms house 5 minutes away and bring her back to my because when he gets mad I can’t get him into my car to take him to his moms or his grandmas who lives the next block over. I have dealt with abusive men my whole life and I can’t tell you how anxious I get over having to go in my step sons room to ask to borrow a fan I bought with my own money for the kitchen because I need to be able to cook. And why is it in his room because my step son thinks everything is his. He wants the fan so it’s his. He wants my charger so he’ll take it and put it in his room and now it’s his and god forbid I ask for it back. This morning I got up early and went to my mother in laws to build a swing set I bought for the kids and the boy was swinging on the set which wasn’t fully together and my brother in law and uncle in law were trying to screw stuff together I had to ask him three times to stop swinging so hard it moved the set. To which the boy the just points and me and looks at his dad and goes “see this is how she is.” Like I can’t do it anymore he’s exhausting and I just can’t do it anymore. Idk if I was looking to rant or looking for advice but you know any advice is appreciated. I know this is a very long read. I’m gonna post a picture of my son because

He’s the only thing keeping me together right now.