She's like those twats at uni who pretend they're working class. No you're just a bit skint, but really you're not. If your first thought with a bit of money is to Burberry, then I don't believe your narrative. Surely you'd be looking for stability. First thing I got was decent shoes, because when you're poor, you get into the false economy of cheap shoes. Then it was underwear, because it had seen better days. Buying fancy, expensive stuff (especially for spite) was so far down the list. And how the duck can you justify £5kish on jackets but not have house insurance. It's ludicrous.
She's got such a chip about not owning her house, maybe if you didn't spunk your money on shite you'd have a chance. It's not like you're on a 0 hour contract trying to save!