Why did she cancel her follow request on instagram?

So there is a girl in like. I didn't had the balls to ask her out on the last day I saw her, so I requested to follow her.

She accepted it 8 hours later and I saw on my mobile she also sent a follow request 1 hour after.

2 hours later I wanted to accept it but she canceled it.

Why did she do this?
Why did she cancel her follow request on instagram?
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