Who pays? 

Gentlemen, girls and men!
Regarding the first date, who pays and for what? already
confused.
A strange incident happened. First date, cafe,
ordering drinks for both, bar counter (payment after ordering). The bartender announces the amount and enters it into the terminal. I start to take out my bag with a wallet, prepare the required amount. Suddenly at this moment the girl puts her smartphone to the terminal, pays for everything in order. She was standing next to me, behind me, so she could do it quickly.
The question of who pays did not arise before.
A priori I was supposed to pay. But it turned out to be quite the opposite. They did not even divide it into two. she
paid for everything.
I was extremely surprised, asked why she did it. She replied that she wanted to treat me.
I replied that I wanted to treat her. This caused me a feeling of discomfort, it was a strange feeling.
Maybe if a girl wants to pay for it herself, she wants to show her self-sufficiency?