But that's still a rich wife, you either find a way to convince her OR you start stealing from her wallet every month for your monthly DCA activities.
If she has a large and expensive shoe collection, you could get one pair a month to sell in E-Bay. You could also hire your friends to kidnap you for ransom.
I think this is the wrong approach to this. You are promoting unhealthy and illegal behavior in the marriage.
Stealing and kidnapping are not the answer. IMO building a strong relationship is about trust, good communication, and honesty. If your wife isn't supportive of your investment goals, the right approach is to have healthy conversations with her. Explain your reasons for believing in Bitcoin and the benefits of the long-term plans. If she is a supportive wife she will help out and if she insists on not helping, then you should find another alternative.
You have spoken well but however I don't think @Wind_FURY meant what he said about the kidnapping or looking for rich woman to marry but on the contrary he was just using it to catch some fun or using the statement to make the thread lively which is why at the end of his Statment he drop a laughing Emoji to show that it was just for fun. After all there is no way somebody would even advise people to venture into kidnapping in other to race money, it doesn't make sense, however most people always feel that if they get married there wife or husband will not support or allow them to continue there investment, on the contrary Bitcoin has grown so popular that most families the wife's are even the ones doing most the Bitcoin investment so actually everything is just based on understanding between couple.