The more reason you are been called husband and wife is to share things in common, shared each other's secrets and perhaps knowing the in and  out of each other especially when it concerns a sensetive issue like gambling. It is very important disclosing your gambling habits to your wife or husband who knows they could be your positive way of getting rid of your gambling addiction.
 


Yes it can, because it can terminate trust in marriage. When you hide your gambling habits from your spouse then may be your spouse later find out by his or her it becomes a major problem that if you not careful it can cause you your marriage.