My bf and friend

So my bf doesn’t like my friend because she basically was telling me since he doesn’t have my password to be in this groupchat with guys and etc and her and I said no of course and she also tried hitting on him one time before we were together but I don’t care because it was before she also gets mad when I go hang out with him during school and I’m just so confused like he also doesn’t like the way they treat me because I let them step on me at times and I’m just I don’t know...