Really good friends?

Okay so I was walking with my boyfriend like I always do to the complex after school so he can work out, I usually walk home from there after I drop him off. Today one of his good friends stephanie was walking with us, and I noticed he wasnt speaking to...

me much, and he was almost ignoring me, so I just stepped back and let them walk together, I grabbed my phone and started texting his best friend brynn to ask him about stephanie and their history. He said that he used to really really like her, and that kind of made me uncomfortable. After she left he asked what was wrong so I told him that I dont like her, I really actually dont. And he said that I have to get along with her seeing as shes one of his best friends. He hugged me and said that he loved me and was sorry for ignoring me and what not. I felt a bit better but I still dont feel comfortable with her around. She has a boyfriend and everything. But yea. So what can I say to him or to her, to let them know how I feel about this without making anyone angry?

He said he loved you, if he does you just tell him that you don't like her again, tell him you think she wants to be more then just friends with him. He will probably say sumin like, thats stupid, just tell him again that your serious. He will probably just comfort you after that and show he cares. This way you will know that he like you and wouldnt touch his friend in that way. Hope this helps,