Did he do this sort of thing WHEN you two were living together, or just since you two have been living separate lives? Maybe he didn't realize it was so important to ask your opinion about how it was spent. I was doing that to my H, not asking his opinion about stuff, and would just do it and tell him after, but now I know it bothered him a great deal, I ask him his opinion all the time. Have you told him it bothers you?
And do you feel inside you have already made your decision?