Ok here is the thing, if u r asking this genuinely the answer is easy, it's not about the money it's about " being a man" u know naturally even if she is rich the moment u raise the question of sharing she will see u as a friend , u will be friend zoned and maybe u r thinking like then am i the one who js supposed to pay everytime? No but u should try to change the conversation into thinking ur future together rather than saying it to her face and this works for men too