she's an author on co-dependancy. I also recommend "The Addictive Personality" by Craig Nakken.
In a nut shell though:
You have to let the addict do what the addict will do. You can't control their behaviour or slow it down (not in a lasting way) only that person can change if they really want to. Don't enable them (don't lend money or help them get money or help them lie or conceal their behaviour, etc) Try not to obsess over the person because even though you love them very much this is THIER problem. Take care of yourself. Don't revolve your life around keeping the addict from "acting out" (engaging in gambling behaviours).
Just loving the person in spite of this problem is a wonderful gift. You can love the person AND not be a victim of their addiction, so protect & take car of yourself.
at 12:09 PM on Dec. 16, 2010