Friendships that turn out to be bogus!

I am so pissed off! What I thought was a friendship that would last a life time, has ended.
So many things have contributed to the falling out - I am not sure if the friend I am talking about is on the same level, but I am sure as hell not going to wait around for her to call, text or message me - and it seems to be without me message her she wont' message me. It has been over 3 weeks and have heard nothing from her.
She is was forever complaining that she has no time for herself, she is so busy blah blah blah - I have since realised it was all lies. She seemed to have found the time to be all over facebook, posting questions on different pages and making comments... now tell me you don't have time. I can't believe I have wasted so much time and energy and money on trying to make the friendship survive.To make it worse, over the last few months she has slowly been putting my other friends against me - they no longer talk to me now. Even my SIL seems to be besties with her - even though this time last year she was bagging the shit out of her! Saying heaps of different shit. Gosh it makes me so angry, she had the nerve to tell me I am depressed and to go see a doctor and counsellour... my problem = is HER!!! I know I don't need her in my life, but everytime I get on Facebook I am reminded of it -( I have already deactivated one account a while ago when the shit first started but then I was missing out on other info so made a new account but she managed to make contact and make me feel bad for not adding her.) Our kids go to the same Kindy as well, I have been tempted to pull them out and change them but they are there full time and so happy (her kids only go 3 days a week) I know she mentioned about getting them into FDC - I just hope it happens sooner rather than later. I don't want to be the one to unfriend so I have restricted what she can see for now. Going to be awkward at the kindy xmas party this year :( But oh well I am so thankful for my hubby - even though somedays he drives me insane, he reminds me daily that he loves me for me and I am just who he needs :) - I don't need her bullshit in my life - she just doesn't seem to be able to make decisions for herself and has to have someone else's thoughts so that she can do them. I was so stupid :( I have learned from my mistakes thats for sure.