My husband doesn’t “give” me anything. We make financial decisions together. He earns the money right now, but we usually run errands together. If I’m going grocery shopping without him, I’ll show him the list ahead of time (I usually don’t know how much something *should* cost, so he gives me a cap per item, but we don’t have a cap on the shopping trip as a whole).
I really can’t comment on specific amounts per week, because expenses vary widely based on the size and specific needs of your family, and especially based on your lifestyle and location. I suggest that you have an honest and respectful conversation with your wife, and try not to think of her desire for an expanded budget as “complaining”. If you show her that you are willing to have a serious conversation, I think you’ll find it significantly easier to reach a reasonable compromise. Much hatzlacha.