Your posts are lovely to read bustersmummy.
I totally identify with the not getting him out of your head. I'm nearly at the two year mark and my ex still takes up far too much headspace. I'm hoping this will reduce in time but it goes to show how brainwashed we have been.
I too love the relaxed feeling I have now - even when I thought I was in love I was always on edge and with hindsight can see I was totally miserable.
Glad to see you have a new DP, I hope you'll have a very happy future with him.