Best friend problems

My best friend and I have been friends for about 8 years. She’s my person, and we never have issues. Like we have gone through everything together. But we had a long talk the other day and we’re super honest with each other about things I had done to hurt her and in vice versa. Nothing serious but like we just had an honest conversation and it honestly went great. We laughed about dumb mistakes we both made in high school and earlier on. I’ll even admit that when she moved away for college I wasn’t the best to her. I was in a super toxic and mentally draining relationship and I kinda dumped it all on her and didn’t stop to ask her how she was doing in school. I felt so bad about not being as present as I could in certain times where I was dealing with my own shit and put it above her sometimes. We talked things out and we didn’t argue at all. I love her and I’d never want to lose her as my best friend. We have both made mistakes throughout the years and we both apologized and were able to joke about it. But then I get a text last night and she sends me a video where all her friends are talking shit about me. She told me they were all sharing secrets and she told them about our conversation and they said that a best friend should never be selfish like I was in certain situations and I’m a gaslighter, etc. I was extremely hurt because I don’t know what she’s been telling them. Her and I NEVER fight. And everything that did happen was never one sided but she’s making me out to be a bad guy. I thought that our friendship has been stronger than ever. I am just so confused. She didn’t apologize for sending the videos. All she said was “it’s just their opinion on you, there is no need to be hurt”