Cutting off all contact with long time love

[John13]

My parting words to her would have been "call off the wedding" not "I wish her the best and hope everything goes well with the marriage."

I was on your side until:

"I had to close to the door in her face and told her to never show up again." And

"I've already deleted and blocked her on Facebook and will change my phone number and emails tomorrow."

That wasn't necessary.
A bit of tact on your part would have been a lot better.