you have such an insight already to the gambling/addiction. I personally think you did the right think in walking away as this will give you much needed space to start/continue your own recovery. I also believe co-dependency is the other side of the coin to addiction/abuse in general. And when you can work through co-dependency you will become a much stronger person and will not attract the addicts. Well done for starting your thread and I hope others will give you some ideas on how to start your recovery.
Although my mother is not a cg, I have not spoken to her in over a year and I have to say I do not miss the drama and chaos she caused in my life. It was very hard to cut those aprons strings but I feel so much better for it and my life is much quieter. Just something to think about. Best wishes San