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If you gamble it is of your interest and that of your spouse, you both need to share same orientation about gambling or given a chance to understand and respect the other person gambling choice and if they won’t then either they go or you reconsider your choice. Why should an adult keep their gambling choice away from their lover that’s deceit to me. Gambling is not a dirty secret.
Gambling is not really a dirty secret, but people consider gambling to be a dirty sin and a secret. However, every person, especially married people, should share their gambling with their wives without keeping it a secret because a wife can give her husband a lot of courage. There may be many wives who do not like gambling, but if they can also be told that they are gambling for entertainment, then that wife can support her husband by explaining it well. I shared my gambling with my wife, my wife gave me consent, but she told me not to participate in gambling more than once a day. However, I think it is better for every married person to discuss this with his wife.