HYPOTHESIS: The investigators hypothesize: 1) that the CBT-CSO group will lead to a reduction in gambling related harm experienced by the CSO, 2) the CBT-CSO program will reduce the CSO's anxiety and depressive feelings, 3) the CBT-CSO program will decrease the amount of time and money the problem gambler spend on gambling, 4) the CBT-CSO program will increase the CSO's relationship satisfaction with the problem gambler.