Girls, Why would she be avoiding me for no reason?

I know I've done nothing to offend or upset her, but why is acting like she doesn't like me. She and I have had conversations and she has sat next to me and stood next to me in the past. She has even mumbled to herself enough so it encourages me to say something, when the 2 of us are alone together. I've even asked her how her holiday was and she keeps avoiding the question. What is going on?

Girls, Why would she be avoiding me for no reason?
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