How should i feel about this situation?

My "ex-bestfriend" and I (we were friends for about 3 years) just recently ( maybe 4 days ago) ended our friendship. This is for various reasons: She was always being bossy towards me, like trying to make me do things for her or always demanding of what i should do. Another reason, I felt she only wanted to hang out when convenient for her/she was always asking me to go places with her never just to hang out. Also, she stared becoming close with her ex boyfriends family again and his new girlfriend..weird right? But i think this is so she can get back with him..And he just came home yesterday, he screwed her over so bad but she is talking to him again! So since she started talking to them thats when i started getting pushed out of the picture and we started hanging out way less and became less close. The past month we got in continuous fights which eventuall led to us beign friends again. Well i get a text from her the other day saying she deleted my comment on facebook because she doesn't want me posting stuff on her facebook announcing we are bestfriends, or when we hang out because it's "child-ish" and she thinks our friendship is middle school.. All of a sudden she had a freaking switch on me because she would rather be bestfriends with her ex-boyfriends sister, who also effed her over various times. I was so good to her, treated her like a bestfriend should be treated! Her family and I were so close as well. I ignored her texts yesterday and today she Imed me online saying that she wants all her stuff back since we are not friends anymore but I did not respond since i was in the shower, so she IMs me again saying that i am a Bich for not responding and she is coming over soemtime this month whether i like it or not to get her stuff. Pretty much the girl has problems..but she doesn't realize any of the things she does. You could say she is psycho and posessive. But still it was my bestfriend, crazy thing is i still care about her even though she has put me threw hell and back. It's annoying that she seems to not care..maybe she will notice in a month that i'm not there and she is not gonna have someone as close as i was to her to turn to. Should i even care we are not friends? I mean it has only been a few days and i feel kindof relieved but at the same time I feel bad..What do you guys think? & Thanks!