Bad Friend?

My friend drinks, and when she drinks she does not know how to stop. She becomes very loud and exposed. The past two times i have been out, I went out with my boyfriend and his friends and I invited her along as well. Each time we’ve all been out she has said some things. The first time calling one of his friends (a childhood friend who is a girl) some names (a whore and ratchet—- which she is far from) and judging them openly. The second time bringing up something from my past to my boyfriend, which ended up with me and him getting in an arguement. I know I should have been open and told him but it was in my past for a reason. I didn’t want to remember that time so why would I bring it up again just to live through the pain and disgust. I feel like I should have been the one to say something and not her. Now, she won’t talk to me even though she caused all the mess. Give me y’alls thoughts!