I distanced myself from my friend and she’s unfollowed me on insta?

So I’ve distanced myself from my “best friend” because she was annoying me and I didn’t want to spend time with her and talk to her anymore. We haven’t seen eachother in 6 months. I feel a bit bad because I didn’t tell her anything, I just didn’t reply to her messages or calls and faded out of her life. But I saw yesterday she unfollowed me on instagram? What’s that about? We were friends at one point? Do you think that’s immature of her?
I distanced myself from my friend and she’s unfollowed me on insta?
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