I should have added when I posted that although we don't split everything and I make more money than she does, she probably benefits more from the money I keep that doesn't go into our joint account than I do.
I'm cheap AF, I don't spend money on myself very often. Maybe a vacation with my friends once a year, I might save up for years and buy a vehicle. I rarely go out for dinner, with the exception of some new underwear and shirts here and there I almost spend nothing on clothes in a year and besides buying myself a new computer once every 5 years I don't really spend any other money on myself.
I think this is why it works for us because when I do spend money on myself she's almost like good for you, I'm glad you bought yourself something.
She doesn't look at it like you're hoarding money that should be jointly split, she knows when it comes down to it if she ever needs anything I'll 100% take care of her and on top of that if there is anything that needs to be done around the house or if our son needs anything I'll take care of that as well.
It's our money, it's just in my account for safe keeping.