Please Help with major Friend issues.?

Psycho alert at #3. She definitely has issues. I don't know why she's acting like that but try to avoid her if you can. With time, she should get the message. Keep hanging out with your friends like you normally do and if she gets mad when you didn't invite her, remind her that she did the same thing to you. Bottom line, try to get her out of your life as soon as you can. She's just gonna keep causing problems for you. Good luck!