Cut off family.?

So I’m almost due with my baby n I’ve had problems with my bfs family mostly his mom n sister. His mom always gets in his buisness n his sister too n his sister actually tried to fight me while I was pregnant n his mom was like no she never tried touching you and don’t text me anymore leave me alone. She says lies about me they both do. Me n him we’re living together at his parents house but I left bc I didn’t feel comfortable there anymore just bad energy and I tell him he should’ve cut his sister off after her doing that bc she could’ve hurt me and his own baby. He just says we come first but his family second but that he will never leave his family n I can’t get him to hate them. I’m like wtf.???? Should he have to cut her off or am I just being too dramatic. I never wanna see them in my life I don’t even want them two near the baby when she gets here. He just says I’m jealous Bc my childhood n my family don’t like me I’m like wtf but his family left hours away today for thanksgiving so now he’s all alone at his house they left him there. But he says they love him so much 😐 I’m going to be with my family they may not be perfect but they for sure love me.

I knew him n his sister were close she calls him my love in Spanish they share drinks she pays his bills on the phone with his money tho n is his nurse she’s his co-signer on his car. But I honestly never thought he would put her before me or at least before his own child.