I think I losing my bestfriend

Over the past few weeks, my best friend starts cutting me off. She doesnt talk to me like she used to, she answers my texts with only one word, no more jokes, no more emojis, and sometimes it was too formal for a long years relationship. She stopped commenting what I tagged her and begin to post things abt friendship and there was time like "Idkaf bestie". I was confused, so I texted her what she meant by that. She told me it had nothing to do with me. I asked further but she shrugged me off. This makes me frustrate and worried. As the result, I asked her whether she had been alright, how her things had been going, had she been struggling with something, did I do something wrong but she only replied "Im fine", "You are not doing anything wrong to me" and left everything I said later on seen. I dont like forcing anyone so I didnt force her to tell me anything but I did tell her that if she wanted to talk Id always love to listen. I tried to solve things, even come

to her house, she wasnt at home, she said on the phone, I dont buy it. I guess she doesnt want to see me. I understand so I will give her time. Yet she kept doing it so I asked my another friend whether she said anything to him but he was confused as me, well at least they still talk normally. I asked him to asked her for me. Well this is what I got, "She didnt do anything to me, it just became awkward, idk, its just, she is not important anymore."