Is my crush weird? Or an attention seeker? or a flirt?

21841908uifhuiweh
Can girls who make dirty comments on social networks such as:

Posting a picture of a guy's pants in the crotch area commenting "crotch drum"

Posting food that are shaped like tapioca balls commenting "men's balls yummmm"

Posts pic of him and another guy on social network and puts comment "Just Bros"

Posts somewhat flirty pics of her lips with heart stickers.

Posting pics of her long legs with somewhat short shorts.

Is this normal for girls? She tells me that she had no boyfriend several times and I'm not sure if she is playing with me or not. She is starting to slightly flirt with me when I told her oh I'm going to get As then she says "show off to me". And she says she likes young looking guys (I am young looking). Whenever there was a male friend with her and she leaves, she tells me "oh thats just my friend's friend. or thats just my friend" Another time she mentions her childhood friend coming to visit her from china, when I looked somewhat jealous/gave her no reaction , she tells me "oh he's just a childhood friend when we were young. He's just a friend. he's not my boyfriend. I dont have a boyfriend x2 times."

Does this girl want my attention or she wants me to be her bf?
Is my crush weird? Or an attention seeker? or a flirt?
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