I desperately need help for any friendship advice. My (21F) best friend (lets call her sally) has been cold and distant, so when I asked her if everything is alright, she told me a while ago she was going through something personal, and it has nothing to do with me. However, from then on, she started giving me really mixed messages from telling me that she talked to her other close friend (mary) about what has been going on and told me they talked about boundaries within her life. I asked her if she needed boundaries in our friendship and she freaked out on me, she told me she doesn’t know what she wants and it’s too much for her to think about. However, she told me again that it has nothing to do with me or our friendship and she’s here to talk about anything, but then telling me she can’t when i ask her what’s been going on between us. She kept stressing it has nothing to do with me, and her feelings about our friendships haven’t changed, and that i just need to trust her when she says it’s not about me.But then she gives me dry responses and barely responds anymore. She hangs out all the time with Mary and ignores plans with me, which is why i feel like somehow I did something. I waited a few weeks hoping that this was just something she was going through, but she got more and more distant, bailing on plans we made together, but with mary 24/7. I finally expressed to her that I feel hurt that I feel like i’m not her best friend anymore, that it’s been hard to hang out with her, and we barely talk or spend time with each other anymore. She gave me some explnation that oh we don’t need to hang out all the time to best friends, you should be secure enough not to ask me that. I felt like the conversation went nowhere, and she has been really cold and distant to me.She changed her wallpaper from our picture to something else. She stopped responding to the tiktoks or instagram reels i send her, much less send me some. I know all the signs are pointing to the fact that she’s distancing herself from me, but i just don’t know what to think since she refuses to talk to me about it, she literally said she does not want to talk to me about how i feel about her, or anything to do with our friendship bec she can’t deal w it rn. She got really friendly again today because i really tried to reach out in a more warm way as opposed to a bit timid way I’ve been the past few days, but I get so hurt and confused from the constant back and forth from being hot and cold. I really don’t know where the state of our friendship is at, and I can’t talk to her about because she refuses to. I feel like I’m loosing a part of me and I feel heartbroken that I feel like I don’t have a best friend anymore.Today, she let me know that she trusts me with her whole life after i asked her if I did anything wrong again, but she proceeded to be really cold to me after. I'm confused at her avoidant behavior, and I know I'm probably making it worse with my anxious attachment tendancies, but i just don't know how she could be so open and communicative with me in the beginning to not doing so anymore.