When my wife and I first got together, one of the things that impressed me about her is that she bought a round of drinks at my going away party from where we worked at the time back in 1981. She was also beautiful, had a great sense of humor and was interested in me! A woman offering to pay is a good thing, at least for me it is!
You were the honoree so she did not break Rule #2.
The socialists of today put me in mind of someone walking into a bar and calling out, " A round of drinks for the house! Who's paying?"
My wife and I have shared our finances equally throughout our marriage. In todays world it's almost impossible to raise a family if you don't. Why is dating different?