Thanks everyone for your posts and support.
I have now been to see the lawyer and the meeting went well.The hard part is trying to deal with my AH who I will still have to live with for the moment
AH rang me in the middle of the day in a rage because he had received a text from a mate saying he is sorry things are over. This happened because I had to cancel a planned get-together on Sat night and so explained to those due to come that we are splitting up (though gave no reason why). AH is furious I have told anyone we have split as he "still hasn't given up on us"
I am now worried that this could become unpleasant because he doesn't seem to want to let go.