I have witnessed first hand a couple like that both spouses were not gamblers,the woman was lured into gambling as the man had promised her to buy some expensive necklace if he won big.I heard them discussing at loud voice in some point as things were not going well in that specific session.In such case the best would be to stop gambling as gambling to this couple was bringing problems to them.
In my opinion when a report is based on lies like this couple had built it usually won't last long and any couple where both partners gamble is destined to fail extremely fast.
If gambling has generated problems for the couple then it is high time they stop as you have noted because if this goes on and on it will result in more problems and even affect their relationship and family at large where their children will start to feel neglected and uncared for because of their gambling habit. There are ways the man can raise funds and buy an expensive necklace for his wife instead of waiting to win big from gambling first. This dependence on gambling will prolong the fulfilment of the promise because no one can boast of knowing when he will win in gambling.
I have been in a similar situation and I know the disappointment that comes from hoping on gambling to fulfil a promise. I remember promising my girlfriend that I would send her money but deep down I was depending on gambling to fulfil the promise so I didn’t win. When she asked for the money I gave her another date with a silly excuse and she waited for the new date yet I didn’t fulfil the promise because I still didn`t. Our relationship soared because she felt I was greedy and didn`t want to help her but deep down my inability to help was because I was hoping to win first and it wasn’t forthcoming. I ended up regretted because the stakes were enough to fulfil the promise and it was so unreasonable to depend on gambling to fulfil the promise.