If she is only with you because of your money and what you spend on her, then Is she really with you or with your bank account? If she can easily be wooed by a large expenditure of money, then can she also be taken away by a larger expenditure of money? If she is so willing to tell the world that you have done all of these things just meeting her 3 days ago, does she really have any respect for you and the burgeoning relationship you both are supposedly trying to create?
Any man spending that much on a woman he just met 3 days ago has a serious self-esteem problem. Feeling the need to lead with his wallet, instead of himself, shows perhaps he does not feel he would be worthy enough without demonstrating he is willing to buy her love. Really, he does not know her at all, and there is a good possibility that there will be some buyers remorse later on.
There is no way to tell in 3 days if a woman is worth a significant distribution of resources or not. What looks good today, can be something you hate next week. So in the end, if this is true, it really is just tricking.