Well I've had my moments of guilt for having to break up with her... but her constant barrage of childish nasty grams and phone calls (and she's in her 40s) kinda help alleviate some of them. It just re-enforced my reasoning that she is not ready for a relationship right now. And I held to my vow of not responding or retaliating. I just let it go as I know she was hurting and they were only words.
Once again thank you for letting me turn to you all for guidance and suggestions. I really do appreciate each and every response!