Perhaps your husband should, for a time, take over things like feeding the dog, and walking him, so he begins to associate your husband with all things good? Whenever he gets a treat, make sure it is your husband who gives it to him. Keep it up with the spray bottle, just be sure to be completely consistent with it - any growling is met with a spritz in the schnoz.
Bulldogs are known for being stubborn - you just need to be MORE stubborn. You may even try the N.I.L.I.F. method - Nothing In Life Is Free. The dog has to wait for you to eat before he eats, etc. Every treat must be earned, and so on.
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