Two things: 1. Use your words. Communicate like the adult that you supposedly are. Have a conversation about things instead of dancing around it hoping the other party picks up your obtuse hints. 2. *Ask* him if *he* wants to go vegan. You can decide for yourself, but you can't force him to. Just as he couldn't force you to continue buying and cooking meat/animal products for him. The solution to all of that is what a conversation would help establish - Both vegan, you vegan/him not, neither vegan - Then if you're vegan and he's not, how will that affect household responsibilities such as groceries and cooking - Separate, together with some compromise, or it's enough of a dealbreaker for one or both of you to completely go your separate ways. These are kind of important things to establish, yeah?

what else do you hide from him and not communicate about? you sound pretty passive aggressive too. This is childish and I hope he finds better than you

So many things wrong here. First, instead of doing the mature thing and talking to your husband about a lifestyle choice, you intentionally stopped buying food items behind his back. Second, I can't stress this enough - you do NOT force your choices on others, especially when it comes to going vegan. That's a huge change and commitment/sacrifice, and not everyone wants to do it. You sound like an immature manipulator.

Dear OP, please tell your husband that I am offering to buy him a cheeseburger for every day you've ****** around and denied this poor man the joy of cooked animal flesh because of your selfish behavior. Also, we will have beers.