Its always difficult to give advice on stuff like this and to be honest i never do, but, it doesn’t sound like you’ve got a ‘fair’ deal out of this. I pay for all the house stuff which like you is in and around a grand a month, but the mrs then pays for the fuel in the car and food, whatever is left over we spend on whatever we chose (although i do run most things past her as she’s very sensible/rational and i’m not lol).
Now obviously this isn’t equal but we’re both happy with it and importantly we both have enough to spend, doesn’t sound like thats the case in your marriage………