I agree with GL, cut out the contact. It took me a very long time to learn that, I wanted to keep the cycle going. I have had minimal contact with my exabf the past 3 weeks.....but 9 times out of 10, I feel awful after talking with him.
I am sorry you are going through this, just do something for yourself today, take the focus off of him and put it back on you.
:codiepolice