Do you all have the extra $200?? If so, then I would definitely tell him you need it for your mental health. You'll be a better person (emotionally AND physically) and wife because you need that outlet. If you don't have the money for it, then I can understand his worry. That's where you both need to sit down together and work out some kind of financial compromise (sell something you no longer need, cut back on other things to afford the money for this, etc.). Good luck with it all and I hope you two work it out so that you are able to take the classes.