Should i get in contact with my ex-friend... ?

... if only to say "No, don't want to" [Plus whatever else that I feel could need saying]?

The ex-friend in question has been mentioned in several stories I've posted on here (I'll put them in a comment if this story is approved and anyone wants any more background info).

Obviously all you can do is go by what I'm saying and telling you but as far as I'm concerned it's all true.

What triggered this question, however, was that she wrote a note on her Tumblr about lateness at some point in 2012/earlier in 2013 (Which I can't find right now but will endeavour to do so). I was the only person mentioned by name, so not unnaturally I assumed it was about me if nobody else.
She said it wasn't about me when I confronted her about it over Twitter and on the phone. She eventually gave me a couple of other names when I asked her who else she was writing that note about if not me, albeit very reluctantly.

Shortly afterwards (When we were talking again), she had a Coronation Street quote on her Facebook about how all men are cowards. Someone said "How true" and I then replied "What about women? (meaning women in general rather than anyone specific)" .... and got blocked by her for it.
_ _ _ _ _

In September, I come home at the end of my shift at work and find a 3-page long letter and a book full of photos of me and Esther (and other people we were friends with at various points), pictures of my favourite band, messages of good luck for my year abroad and other stuff that she'd planned to give me for my 21st or 25th birthday.

The letter asks us to be friends again as long as I accept that the Tumblr post wasn't actually about me at all.

My friend Clara - who I met through Esther, then was in a relationship with for several years and am still very close friends with - has had a look at the book.

Apparently, according to Clara, Esther has a history.
A history of being passive-aggressive about people in spaces where the people she's talking about can easily see. Then she and the people have a major fight and the friendship ends... only for Esther to ask to be friends again with the other people without acknowledging what she did wrong but "forgiving" the other person for whatever they've done wrong.