I don't lie to my husband, this has served me well for 48 years; however, I don't volunteer information unless asked directly. In our financial world it is "our" money and I'm responsible for paying the bills, etc. So if I feel that an item will make me a better quilter and if we can afford it I buy it. My DH will never understand quilting needs; i.e. stash, and he never will. At this point I believe if I was in your position I'd find a good time and just tell him. If he is like my darling man he might be angry, but he loves you and he will eventually understand in his own way.