She called me her big brother?! :/

here is the quote from Facebook from the girl I'm trying to ask out:

"truth is I've only known you a month and you are already like an older brother to me! you crack me tf up I swear you make me laugh when I'm having the sh*ttiest day! I loves ya buddy! :)"

some people says its a sighn she's into me and others say its a friend zone. what do you think?
She called me her big brother?! :/
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