What a sad place for you to be in. Are you attending al-anon or doing anything for yourself, for you own recovery from this painful journey? You did not cause him to drink.
Originally Posted by
Tansy 
He says he's stopped cos his drinking cost him everything he cares about.
There ya go. He lost the most important things in his life (you and a united family) due to alcohol, and so he decided to quit drinking.
Sometimes there is just no going back. We (both partners) don't take a journey like alcoholism and not be changed. There is water under the bridge and we are different people.
My xah used to sort of throw it in my face that when he left he'd be sober and wildly successful and I'd be sorry. My response was that I'd rather have a sober successful ex husband then be married to a unemployed drunk.