Why are girls so indirect?

They talk about a guy they like to their friends and everything and then when it comes to being with the guy they leave everything up to him e.g they give all the hints kind of, they wait for the guys to make the move but they do nothing, I'm asking cause I told a girl I liked her and we kissed ,she started ignoring me and a few weeks later her best friend told me that she does really like me which has left me totally confused cause I had giving up on her?
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girls?
Why are girls so indirect?
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