I cannot say whether walking into a casino and getting security to throw your wife out would make a difference but if you asked me would I do it based on your past experience- the answer is yes.
I was horribly criticised for driving my CG to the doorstep of the rehab and accused of treating him like a child but if I had not done so he would never have arrived. I knew I was going the extra mile and it could have backfired on me but sometimes we have to do what we feel is right.
Your mother-in-law sounds as though she could be a brilliant sounding board for your thoughts especially as you both have the same goal. Work with her James and all the family members who are willing to support you – a united front is a terrific club with which to beat the dreadful addiction to gamble.
You are going to the gym and having a massage which to me says you are giving your brain some free time and that is fine and possibly all you could ask of yourself at the moment. We cannot turn our feelings on and off like taps and I would be surprised if you were not thinking about your wife – this does not in itself make you co-dependent.
Did you print off the GA 20 questions?
Keep posting and asking anything you want to ask – we will do our best to support you.
Well done on all you are doing