This girl suddenly uninterested?

So this girl and I met we flirted, touched, laughed had a lot of chemistry then suddenly goes cold, shows no interest. I think it was really weird so I asked her what was going on she said nothing. Then she try’s to get me to notice her, try’s to get my attention, flirting with other guys, making out she’s having a good time etc.
Is she playing hard to get or just not interested?
This girl suddenly uninterested?
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