[Jemaclus]

We do something very similar. I make about 2x what my partner makes, and our joint expenditures are divided up similarly. We don't feel the need to get approval to buy whatever we want with our own income, but we also happen to be relatively frugal, so there has yet to be a moment where, say, she comes home with a car that she didn't tell me about.

I also don't have a problem saving up money to buy nice things for us that comes out of "my" account, because I mean, technically it's all "our" money, even if they're in separate accounts. The separate account thing just makes it mentally easier for me to justify to myself being able to buy a new guitar and for her to justify to herself about buying a new bike.

At the end of the day, we're on the same page about finances and neither of us (to my knowledge) resents the other, and that's just about as good as it gets, I think.