I know this has been hard on you but her moving out of the home was best for you and your children. Living with someone that abuses alcohol and drugs is a living hell. And there are those that choose to also smoke marijuana and snort cocaine. This kind of person is not heathy relationship material and certainly not healthy to have around children.

You mentioned that your wife likes to go to the casinos with her besties? Many toxic problem drinkers and drug abusers hang out at the casinos. No Mr. Wonderful at these bars and casinos, instead mostly people who have relationship problems. Imo she just wants you to subsidize her party lifestyle.