Why would a girl call a guy bestie knowing it would confuse him?

GenCoupeTT
So I've been talking to this girl for awhile and in a couple of times she called me bestie or best fraaaannn like she texted me on the first day of school a picture of her that said happy first day of school bestie then she sent another pic that said first day outfit.

So I asked a girl at my school was I horribly friendzoned and she kinda tagged along the next time I saw the girl I liked she said from her body language and the way she says bestie that she likes me and just wants to seem like she's closer to me... like wtf.

So I didn't completely believe my friend so I decided to test the waters myself it was my birthday so I texted her saying this is my bday wish exactly this "I really want to kiss you jk I know we can't so I'll just be happy with another hug" (Note this girl has a bf thats why I said I know we can't to make her comfortable about the msg) She responded back within the same minute saying "Hahahaha oh lord David" Now I didn't respond back and she has been texting and snapchatting me first for the past two days So I figured that from her message she wasn't adverse to kissing me... not that she wants to but she didn't say were just friends or I don't feel that way about you she left it open.

1) Ladies what did her message mean?
2) What would you say if you only thought of the guy as a friend?
3) Why do you confuse a guy by calling him a bestie if you like him?
4) Why does she keep messaging me?
Why would a girl call a guy bestie knowing it would confuse him?
3 Opinion