Why do some girls act like a bitch?

Just found a girl who was up for casual fun, she told me she is fine to meet up and will give me a confirmation of a set time. She did not reply the whole day, so I just asked I guess we won't be able to meet up today - (I said it bcoz she has to be at home by 10 and messaged her at around 8 so no way we could meet and go out) That bitch saw my message and blocked me on telegram and unmatched on tinder. So why so much attitude? When i was being good and a gentleman and never spoke or chat any shit...
Why do some girls act like a bitch?
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