Yeah, me and DD are fine thanks 
I am still in regular contact with him, he sees DD a lot. He continued to gamble for a good while after we split up, but after loosing tens of thousands of pounds and several jobs as a result, he finally hit rock bottom and has pretty much stopped gambling now (to my knowledge anyway)
I really do think it is a good sign that your dh can recognise his problem and is seeking help, I think it is a very tough addiction to conquor, but it sounds as though he is on the right road 
Hang on in there if you feel you can, as I am sure he will need the support, but i realise how hard it is.
For some gamblers, i think it is about more than just the win too, it is a form of escape and the thrill of the risk or whatever. I know for my xp it was a lot to do with escaping from the pressures of everyday life etc.....
I have read quite a bit on the subject, but i still don't claim to understand it, but I'm happy to chat if you need someone to talk to, as i know it is hard to talk to people who are close to you about it 