She asked if I wanted friends with benefits or a relationship, then I said friends with benefits and she said me too. Then ghosted me, why?

While hanging out she asked what I wanted out of this and asked if friends with benefits or a relationship, I said friends with benefits and she said she wanted that too but then went MIA on me after that night.

She asked if I wanted friends with benefits or a relationship, then I said friends with benefits and she said me too. Then ghosted me, why?
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