"It's okay, you don't have to worry about me being one of those jerks who expects something in return for every penny he spends, I think my mother would find a way to kick my ass from beyond the grave if I did that." He liked to think he was good at reading people and since his headache he seemed to be getting better at it, still, it wasn't hard to see she was unsure about his offer. "I figure it's only right since you had to sit in traffic, use all that gas, and it's a hell of a lot cheaper than offering to refill your tank."
He was teasing a little of course and gave her an easy smile, "You can tell me just to shut up if you want. I just don't to make you uncomfortable."