JerseyVics, I actually remember you telling that story on here a while ago and it is crazy!

To the OP, no need to worry. JetBlue well documents your call/reservation history and it should be linked with other members of your party. I've flown on different confirmation numbers than family members for various reasons (different return date, ability to use TB points on some part of the trip, etc.) In the vent you need to cancel or change, ask if they can waive 2 fees because you are all booked together on the same flights.