{{{{{{{{{{geekgirl}}}}}}}}}}}}
I think it is wonderful that you recognize this in you and are taking the steps to change. That is success in itself. It is not going to happen overnight....time is on your side though.
I have a different situation - my ex is dependant on me. He will call sometimes 3 or 4 times a day....I have to be cordial as we do share a son but when the subject turns to something other than our son...I politely say good bye...I have things to do, etc.
You will get through this....you were married for a long time - it is not going to go away with wishful thinking (oh if it was only that easy eh?

) but you will and can do it. Keep going to your support group - that in itself is wonderful knowing that you are not alone. Keep posting to us too....there is so much wisdom here and you will gain such insight into yourself. Have you looked into therapy for yourself to learn ways of coping? Just another thought.
Take care of you ok?

Heather
"The Pessimist complains about the wind, the Optimist expects it to change and the REALIST adjusts his sails." ~~~author unknown