Just had an argument with DS. We never talk about our income or any of our family finances with anyone at all. He's just told his mother about some income we get and how much. I asked him if he could not talk about exact amounts as there was no need to tell her, and could he respect that I feel that way. He went mad at me and said I'd never said he couldn't say anything. He has this relationship with his mother where she's like the Spanish Inquisition and he then has verbal diarrhoea! Am I being unreasonable in not wanting him to talk about finances when we never have before?