Well, that's interesting. If the spouse does not want you to indulge in gambling then it becomes a very difficult situation. It is not easy to give up on marriage only because of this. Also, it is almost impossible to give up on gambling if one is a habitual gambler. So what situation is left in this case 

One option is to talk with the wife and try to convince her, but if she still doesn't agree, then what? This leads to only one option and that is the most easiest one too, do gambling while keeping it hidden from your spouse.