I guess it's like a sign of a gentleman. All of my guy friends in uni never let me pay for one thing even though I have the money in my hand and I am arguing with them at the check out of the uni mart or even the restaurants in uni. It is just not about boy friend girl friends, I guess it is pakistani guys or something? :D
Hmm I wonder. But usually some of my amreekan colleagues usually offer to pay when we go out for lunch, and this one guy J always buys the 1st round of drinks(virgin for me) for the ladies for our monthly after work get together.
But we always offer to pay, and I know I usually reciprocate when given the opportunity.