I guess the bind I am in is that if I pay for stuff I am perpetuating her impression of me having money and she not having any. But sooner or later, she has to come to the conclusion that I am not causing her lack of money. She would have even less money of we split the last couple of bills we (supposedly) still share (and I have been paying for the past 8 months or so).
But there's nothing I cna do about that, so it's not worth getting upset or wondering over...