Sounds like something I would do
Went out on a date this past Saturday (first date) Bill came, took out my card and said to her
"Do you have cash cause I want you to leave the tip" she says no, I didnt bring any cash.
I took a mental note and carried on with the rest of the night which involved a little bit of talking then called it a night.
Next day she hits me with this text
It was nice of her to offer a payback, but I dont believe she would of If I didnt suggest her leaving the tip, so she felt bad.