Why she do not block me even I asked for it?

I have talked with a girl for some time, thing went i would say on average. Sometimes she initiated conversation sometimes me. After couple of months I decided its time to tell her that I would like her to be my girlfriend. Obviously I got rejected ("I don't feel the same, bla bla") and was offered to be really good friends. Well I accepted that, because I really wanted to at least keep her in my life. But from that point we kinda stopped any interaction, I was the only one who tried to start at least a friendly chat, but in response I got only one word answers or "ghosting", but she was friendly if we meet somewhere irl. As hard as I tried to move on, every single time when she posts something these feelings inside of come back. So once again I decided (maybe alcohol in me) to confront her and say that I still love her and can't forget her and asked maybe she can help me by blocking me, because I can't do it by myself neither can live like this anymore. But once again she left me on seen and couple days later she is once again very first person to see my social media updates. Why she is acting like this?

Why she do not block me even I asked for it?
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