You and your wife laughed at this guy and his girlfriend? Did you know this couple?
I don’t know if it was laughed at them as much as we were laughing about the comment our son made. We were eating our meal(s) and the couple walked in. I didn’t even see them until they walked directly in front of us at which time the question was announced.
Bottom line is that if you’re going to do the May/April thing as opposed to May/December you don’t take your date to a family friendly place.