UPDATE, what is up with the girl?

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This is an update to my "Girl doesn't reply to my facebook anymore?" question:

So this is how it started:

This girl whom i danced with three months ago at a school party, sent me a friend request, i accepted cuz i knew her before the dance as well.

So i asked her how the party was via Facebook, and got no reply since. No matter what i said, nothing (I even asked why myself!) . Around 3 days ago, she poked me, i poke back, and she said stop poking me.(finally, a frickin' message i said in my head) What is she doing? Why isn't she talking to me?

Don't tell me "she could have been busy" Bull. One can't possibly be busy for 3 months!

Please help me, this has gone on too long. I want to know whats shes doing, and help me out so I can do something.