I don't think there is really a hard and fast "should" or "shouldn't" here. I strongly believe the man should initiate, and I believe the initiator should be the one who pays. So you could say I arrive at the conclusion that the man should pay, but if a woman made the first move and it was her idea, then it would make more sense to me that she paid. But at the end of the day, it's not a matter of obedience to God. It doesn't carry that kind of weight. I think it's something that, especially when you move into a serious relationship, you have to decide on as a couple.