So embarrassed of what my boyfriend did to me

I am so embarrassed, so I was upset with my boyfriend because he is terrible at communicating with me, and I tell him he need to do better and he call me high school and childish that I am expressing my concern. He never listen to me when I try to explain myself, he think only men that have no money have to have a emotional side and because he has money he doesn’t have to be that. but In our relationship all he talk about is sex, money, and how much he is going to make doing a certain side gig. Anyways so I tried to communicate how he really have to be better at communicating and I tried to give him examples of the time he doesn’t, but all he did was cut me off and listen to respond instead of really hearing me out, even his friends said the same thing about him. So I shut down and didn’t want to talk anymore because he was not hearing what I was saying, so he decided to call my sister. me and my sister have two different lives. She has a family and her own situation and I live with my boyfriend, me and my sister do not talk about our problems in our relationship at all until the relationship is over, my boyfriend is always threatening me that he is going to call my family and explain our problem to them and I always get mad because why are you involving my family into our relationship I tell him all the time let’s talk to a therapist and he always decline , now I am embarrassed because he really call my sister and now my sister is asking what is going on and now I have to tell her something. I told him I feel embarrassed and betrayed that he call my sister I told him I can’t do this relationship anymore and he said he is going to call my family and tell them we are no longer together and explain the details to them and tell them he is not responsible for me, but that is so embarrassing to me because I am 30 years old me and my family all have different lives I told him I will let my sister know tomorrow and he said no that’s not enough I must talk to someone. Any advice???