break off without an explanation!

I had this friend. We became close very soon and then she started annoying me. She would come to my room and spoil my privacy and wouldn't 3ven take a hint when. Wanted to know all my affairs and why would she wanna know what me and my mom talked over phone? Constantly asking what I was doing while I'm laying over my bed and chilling. She didn't want me t o talk to anyone and all that shit. She has said my friend off and said to somone I know that she is jealous of me blah blah blah.and there is more... I stopped talking. Now she's crying to everyone that I can never have a friend like her blah blah and no will ever know me like she know me... She often asks people about my wellness. All I see is a one venomous snake behind that innocent facade. What do you think? Am I an ass to her or ???