Watch out, this will be a long one so TL;DR at the end

(I've been really confused if im in the wrong or not but idk)
Me and my friend (we'll call her attention because   text fill in told me to) go to this place for grade 6-9 can hang out and play games and cool stuff like that. We go there every wednesday since last year and never had a problem. But this time is a different story. So she came over to my house and started watching a show wgen i realized i lost my fitbit, we walked down a path to look for it and eventually founf it. We went back home, had supper and i gave her $5 (i wasn't told i had to btw) to spend on food and drinks there. When we arrive, we spend some time walking around with our taco's in a bag and trying to find something to do. Attention finds one of her friends and basically forces her to take the 2 dollars she had left that i gave her! She apologizes but i know when she means it and she didn't mean it and just kinda brushed it off like she does when she doesn't care. So we start play fighting and she spits on me (she even said it was on purpose) and so i called her a name ( she never found it offensive before and i didn't say it loudly and it was quite loud so no one could og heard me anyway) attention then says, " i'm going to hang out with my REAL friends" and walks off. I hang out with another one of my friends the rest of the night and she was supposed to ride home with me but like hell im going to offer her a ride. 
*next day* 
We had a skating day and we avoid eachother and don't get in eachothers way. One of my friends (that knows the situation) comes up to me and says, "attention said that she knows one of my deepest darkest secrets". The only secret i've told ger is mt crush so i knew thats what she is talking about. So basically she is now black mailing me.  My friend also says that her mom now hates me but idgaf. 

TL;DR
I gave my friend 5 dollars to spend even though i didn't have to, tries giving it to someone else, we playfight, she spots on me, i call her a name quietly so that only her and me can hear, and she hangs out with her "REAL" friends and blackmails me later.
