Will It Just Draw Me Back into the Drama?

I haven't talked to one of my (former) friends in months. After a series of events that led me to doubt the sincerity of her friendship, I decided to purge her from my life. For awhile after she realized I was avoiding her she began commenting on my FB incessantly etc. Now she doesn't talk to me anymore either. I think that if she is being honest with herself she will know why I no longer want her in my life but I can't help feeling that I should spell it out. Is mutual silence a resolution? I'm not sure - I feel drama-free, but not entirely at peace about it.

I'm a Cancer & normally I have a hard time letting go of people but I no longer trust her & don't want to talk to her again. I also get the impression she thinks my boyfriend has something to do with the situation. He doesn't — it just happens that her final insult fell a few months into my relationship with him.

In the time we were friends she ditched me at a concert (after lying about the fact she only came to pick up guys — she's married but was experimenting), set me up with a guy she wanted but couldn't have (without telling me any of that), & then let me know she expected & was ready to end our friendship when I become a mom because I —just wouldn't be interesting to her anymore.?? (she HATES children). I discovered later she set me up with the object of her desires to take the heat off after her husband found out. I had already fallen for the guy when I began to notice the obsessive way she asked for details of the one & only time I made out with him. After I realized he wasn't into me I moved to break off any attachment & she always had a reason why I should keep at it (he's just shy; he asked about you; blah, blah). She was so persuasive that I trusted her. Meanwhile the only times I saw this guy she was there too & took complete control of the interactions. I finally saw through her & cut things off with the guy and for awhile she acted supportive and indignant about him not liking me but then I started dating my now boyfriend and she realigned herself with the guy. She is v. controlling & manipulative & hearing her say I was only an amusement of sorts which she expects to lose interest in if I have children was the last straw for me. Would an explanation just pull her back into feeling like she has power in the situation? Should I delete her as a FB friend (our last link) & call it a day?