I was very close friends with someone for a number of years and would see or speak to her most days - we were each other's main confident.
Then a year or so ago our lives started to head down different paths, or rather she took a sharp turn off the path I'm still following. I actually thought this would cause our friendship to drift and realised I'd become too reliant on her and decided to make an effort to widen my social circle. I also found myself becoming increasingly irritated and annoyed by certain personality traits of hers. They're not things she can easily change and I don't dislike her but started feeling that I needed to distance myself and not have her as a close friend anymore as she can be an attention seeking drama queen.
So I started the distancing process. Stopped initiating contact, was slow to respond to her messages, stopped reacting to her prolific fb posts, too busy to meet up etc etc. Instead of the friendship slowly drifting like I expected, her persistence intensified and she eventually asked if she'd done anything to offend to which I replied that I was just very busy (which is actually true these days!).
After I declined yet another invitation to meet up several weeks ago I've not heard from her since. So it seems I finally got what I was aiming for!
However, I feel guilty! She often posts "woe is me" type stuff on fb and in the past I'd always be one of the first to react. She seems to be going through a particularly tough time at the moment, although I do now believe a lot of her issues are of her own making. I've ignored every post and let others do the ((((hugs)))). We have a few mutual friends who have mentioned "poor X" and asked if I've seen her lately to which I've been non committal muttering about being "too busy". I'm sure sooner or later people will realise we're no longer friends and will think I'm a cold hearted cow 
Honestly folks, AIBU or did I treat this friend like shit and handle the whole thing badly?!?