in house S (5)

[mvgfwd2]

You need to make a budget of all joint expenses. Housing, utilities, food, etc. and agree to a split. Move your income to a separate account. Write separate checks for your portion of the bill. It's a pain but you have little choice since money is a big issue. At least you can control your earnings and expenses regardless of what she does. Don't let her inability to manage money become your problem.

I would believe any car expenses and such for her car would not be a joint expense. Maintenance, fuel, loan, etc. Unless you agree to it. It's her car. If it's too much she can sell it and get something more affordable.