I think it all boils down to your financial situation- do you or don't you have enough money for this?
The way I see it- That's it. No way is spending money on therapy wasting it away but there are some (very few) more important things- food/clothes (Im not into spending much on it too- but ONE pair of shoes, really?!)/house/... not many but some. If you can afford those and still have money left for therapy- I would be inclined to look for some ulterior motifs on his part. Draw a line there if he wont stop- dont let him talk you out of it.
However, you working a full time job AND doing all the work at home would be stg I'd have a discussion over ( unless your H works two jobs)