I (28F) am not okay with my bf’s (25M) best friend (20F) flirting with him so I’ve set some boundaries, now he’s upset.

A little background first: I’ve know my bf for 5 years, we’ve been together for 4 years. His best friend is a girl he has also known for 5 years. I was very insecure and unhappy when we first got together because his friendship with her was so close and physical so I asked if he could set some boundaries. He was a bit upset as expected but they made some changes and I was happy. <br><br>Fast forward to now, his best friend is 20 so she was 15 when all this first came up. She obviously didn’t fully understand how uncomfortable her behaviour made me and she took the boundaries as being about her, which I can’t blame her for. She was pretty angry about it. <br><br>In the years since she has grown up a bit and we are all okay now. Not exactly close but we can be in a room without her giving me dirty looks (and she was very young, I can’t really blame her). <br><br>A couple of days ago he had to go pick her up and she didn’t have any shoes so she stayed in the car. I came over and she insisted I get in the car so we talked for a couple of minutes with the back of her car seat up between us. She was trying to make me laugh and playfully grabbed my face with both hands, once I jumped she let go and apologised and we kept talking. <br><br>He and I were discussing what to have for dinner later and he was saying how I made the best burgers and he wanted me to make them and I was saying I wasn’t in the mood and wanted to get take out and she interrupted me to tell him not to listen to me, I would always say that but I’d always end up making him food anyway. Which is true but I found it a really condescending thing to say. <br><br>Then she got out of the car and we were talking and she put her arm around me and said she really loved me and missed me. I was super uncomfortable so I excused myself. <br><br>I told my boyfriend about this and how I didn’t want her touching me or being so physically close. He apologised for her and said he would tell her but after telling her the first time 4 years ago he knows she doesn’t listen to him so he suggested as a fix that he and I don’t hang out with her anymore. <br><br>That isn’t a very good solution though because she is his best friend and we have the same friend group so we can’t just never hang out with her. So given that she doesn’t listen to him, I said I would handle it. <br><br>The next day I saw her and I just told her I love you but I’m not the touchy type so I’d rather we didn’t hug. I made sure to include the I love you so she didn’t think I was being unfriendly. <br><br>She did look pretty upset and my boyfriend was very angry with me for doing that, saying he would have asked her and she would have understood, I just overruled him and made her feel bad. So now he is angry and she is angry and I feel like I just ruined our friendship group. <br><br>Was I wrong to handle it this way?