Of course some people can keep secrets, but it's no more what is expected when it's about husband and wife or those in a relationship, because they are not expected to hide anything from each other any longer, if you know gambling is what can upset your partner in relationship, it's either you stopped it or end the relationship, but when both agreed to be on the same page, things wouldn't mixed up and everyone continue to get each other disappointed all because of gambling.
The failure of the man to let his wife know about his gambling history is what really destroyed their marriage and for sure the wife will definitely feel disappointed, but my greatest surprising thing is that, if he hard told his wife, he could have continue gambling and with no problems with the wife at all, since she will be aware by that time and knows how to handle the reality, but the husband kept her I the dark until she discovered herself which is the basis for her anger.