Girl's Behavior

Girls, what does this all mean?

So I was on a chat site and this girl starts messaging me to which I responded, after couple of days she stops messaging me and as soon as I login to that website she logs off immediately. Later in the week she messages me that she was busy (even though I noticed her game of hide and seek) to which I never responded as I took that as a hint she wasn't interested in talking anymore and now she follows me around in chatroom channels I visit.
Girls, what does this all mean?
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