Hey why is this gurl like this is she normal?

ok so ill try to give you a summary , i had this friend that every one hates i stuc, to her cause she doesnt have anyfriendsm from the start i knew she lies a lot. even about her boyfriends says bad things about her boyfriend that he abuses her, he cheats , drinks always borrows money from her etc, he boyfriend happens to be my boyfriends bestfriend (hope u understood this) and my boyfriend wil defend his bestfriend guy called carlos to death the girl ill call eviliny, so eviliny keeps lieing to me about carlos at a point she told me she had broken up with him but the carlos kept saying its a lie that he didnt, she told me her boyfriend said something about my family that my sister was mad and in the hospital whereas she was the one that formulated this story i just found out all this years, i then told her yesterday that she is a liar and i am tired we kept exchanging messages, this girl lies about everything, i just want to be sure that i did the right thing by calling my friendship off wit her she started acting all funny but i had to text her to show her i am a crazier girl than her, now my bf has washed his hands off her as he said she has been the snitch in the whole situation,that she confessed to him she says bad things about her boyfriend to keep gurls from snatching him, she is a fat nd desperate gurl. was she trying to break us up? does she have good intentions