AITK for asking my girlfriend why she never offers to pay on our dates?

I (28M) have been dating my girlfriend (24F) for a while now. I enjoy treating her and pampering her—taking her out, paying for dates, etc. But recently, I started feeling like I’m always the one paying, and it made me feel unappreciated, like my efforts were being taken for granted.

So, I decided to ask her, “Why is it that you never offer to pay on any of our dates?” I thought it would spark a healthy conversation where we could both share our views. But instead, she got upset, asking if I wanted her to start paying for everything. Eventually, she told me she didn’t want to date me anymore.

I’m feeling confused because I didn’t mean to hurt her. I just wanted to communicate my feelings. I love doing nice things for my partner, but I also want to feel like my efforts are appreciated.

AITK for asking her this question, or did I overstep?

EDIT : To clarify, I earn significantly more than her but we have never really gotten into any details on how much each of pf us earn etc. She earns decent enough. I firmly disagree with the comments calling her “gold digger”. I tried to dig in a little deeper and was able to understand where this pov comes from. Her being pampered throughout her life and her core opinion that there are certain things which are a man’s responsibilities in a relationship form the basis of this opinion. Nonetheless, that is not an opinion I share and is very different from my idea of a good partner. I think it’s a huge compatibility issue and it’s in both our interests to go separate ways rather than try making it work as it will be even more hurtful going forward. Thank you all for the great suggestions. It really was helpful to know that i was not thinking like a POS here.